Privacy Policy and Terms of Service

Last updated: August 30, 2026

Welcome to UinDrop (hereinafter referred to as “we” / “our”).

1. Your Agreement to These Terms of Service

These UinDrop Terms of Service (these "Terms") constitute a binding agreement between you (the “User” / “you” / “your”) and us (including our successors and assigns), and set forth the terms and conditions governing your access to and use of the UinDrop application, website, products, services, and other content we provide (collectively, the “Services”).

By accessing or using the Services, you acknowledge that you have read, understood, and agree to be bound by these Terms. If you do not agree to these Terms, do not access or otherwise use any of the Services.

Your access to and use of the Services are also subject to our Privacy Policy, as well as any additional guidelines or rules that we may provide from time to time. Such guidelines or rules will be posted through our Services or otherwise made available to you and are incorporated by reference into these Terms.

By accessing or using the Services, you represent that you have full legal capacity and authority to enter into a binding agreement with us.

If you are accessing or using the Services on behalf of a company, partnership, association, government, or other organization (an “Organization”), you represent and warrant that: (1) you are duly authorized to do so; (2) you have the authority to bind your Organization to these Terms; and (3) your Organization is legally and financially responsible for your access to and use of the Services.

Please take the time to read these Terms carefully.

These Terms may be available in multiple languages. In the event of any conflict, to the extent permitted by local law, the English version of these Terms shall prevail.

2. Changes to These Terms

We may revise these Terms from time to time. We will use commercially reasonable efforts to notify you of any material changes to these Terms.

However, you should review these Terms periodically to stay informed of such changes. We will also update the "Last Updated" date at the top of these Terms to reflect the effective date of the revisions.

By continuing to access or use the Services after these changes take effect, you agree to be bound by the revised Terms. If you do not agree to the revised Terms, you must stop accessing or using the Services.

3. Who May Use the Services

You must be at least 14 years old (or the minimum age required in your applicable jurisdiction as specified in our Privacy Policy) (the “Minimum Age”) to use the Services. If you are above the Minimum Age but below the age of majority under applicable law, you must obtain consent from a parent or legal guardian to use the Services. Please ask your parent or legal guardian to read these Terms with you.

Without limiting the general age restrictions above, you must be at least 18 years old to use certain features of the Services. In such cases, we may require you to provide the necessary information or documentation to verify your age before you access or use those features.

If you authorize your child to use the Services, you agree to be bound by these Terms. You are responsible for supervising and monitoring your child’s use of the Services. If your child is using the Services and does not meet the Minimum Age requirement or does so without your permission, please contact us immediately at uindrop@gmail.com so we can disable their access.

4. Collection and Use of Your Personal Information

4.1 Google Sign-In

When you choose Sign in with Google, UinDrop receives only the basic identity claims supplied in the Google ID token: your stable Google account identifier, email address, email verification status, and profile display name when available. We use this information to authenticate you, create or resume your UinDrop account, link a login method when you explicitly request it, maintain account continuity across your devices, and protect device-bound account sessions.

UinDrop does not request access to Gmail, Google Drive, Google Contacts, Google Calendar, Google Photos, or other Google product content. UinDrop does not request sensitive or restricted Google OAuth scopes. We do not use Google user data for advertising, ad personalization, credit decisions, or sale to third parties.

4.2 Verification, Storage, and Security

The Google ID token is sent to the UinDrop server solely for verification of its signature, issuer, audience, nonce, and expiration. The raw Google ID token is not persisted. To prevent replay attacks, we retain a one-way hash of that token only until the token expires. While your account remains active, we store the provider name, issuer, stable provider subject, email address and verification status, display name when supplied, and the timestamps needed to operate and secure your account. UinDrop account session credentials are stored server-side only as cryptographic hashes.

4.3 Device and Account Service Data

To bind an account session to your device and provide account, device-management, and subscription-entitlement features, we may process a device identifier, device public identity key and algorithm, platform and device name, session and last-seen timestamps, and store-account binding or entitlement records. We use this information only to provide the requested account features, prevent fraud or abuse, and maintain service security.

4.4 User Files

Google Sign-In does not upload your files to Google or grant UinDrop access to your Google product content. File operations are initiated by you through UinDrop's local file-management, local-network browser, or device-transfer features. Google account data is not used to inspect the contents of your files.

4.5 Sharing and Limited Use

We do not sell Google user data or share it with advertising platforms, data brokers, or information resellers. Information may be processed by infrastructure providers only as necessary to operate and secure UinDrop, or disclosed when required by law or necessary to protect users, the public, or the integrity of the Services. Our handling of information received from Google APIs follows the Google API Services User Data Policy, including its Limited Use requirements.

4.6 Retention, Deletion, and Your Choices

We retain account identity and device information only for as long as needed to provide your active account, protect the Services, resolve disputes, and meet applicable legal obligations. Expired provider-token hashes are regularly deleted. You may sign out from UinDrop at any time. To request deletion of your UinDrop account or associated personal information, contact uindrop@gmail.com. We may need to verify the request before completing it.

In short: Google Sign-In is used only to identify and secure your UinDrop account. It does not give UinDrop access to Gmail, Drive, Contacts, Calendar, Google Photos, or your Google password.

5. Your Use of the Services

Certain Services or features may not be available in your jurisdiction. Different versions of the Services may offer different functionalities. Some features may not be available to users under a certain age.

To use our Services, you are responsible for any device-related costs and associated fees (e.g., internet connection and data charges). If you are unsure about these costs, please consult your service provider.

We may update or modify our Services from time to time. You may be required to manually update the Services. If you opt out of automatic updates or refuse to perform such updates, our Services may not function properly or may not be fully available to you.

We reserve the right to discontinue or terminate all or part of our Services, permanently or otherwise, with or without notice. The Services are owned and operated by us, and we reserve all rights in the Services not expressly granted to you under these Terms.

6. User Files

The Services allow you to transfer and share (collectively, “Transfer” or “Transferring”) your photos, documents, audio, video, files, applications, materials, content, data, and other information (“User Files”) with other users of the Services or your own computer.

By Transferring User Files, you permit us to transfer your User Files to (and only to) the users you have selected to receive such User Files, and to modify and adapt such User Files solely to facilitate the transfer of your User Files and to provide you with the Services. You represent that you own the User Files you are transferring or have the necessary rights, licenses, or permissions to transfer the User Files.

Except for the limited license mentioned above, we do not claim ownership of your User Files. We do not verify, review, or monitor the contents of User Files. While we may take commercially reasonable steps to protect the confidentiality and security of User Files transferred through our Services, you understand that data transmitted over the Internet or any network cannot be guaranteed to be completely secure, and you agree and acknowledge that we cannot ensure the confidentiality or security of such User Files or any information.

The transmission of any User Files is done at your own risk.

7. Code of Conduct for Using the Services

Your access to and use of the Services is subject to these Terms, all applicable laws, regulations, and guidelines.

You agree and acknowledge that you will not:

- Access or use the Services if you are under the minimum age specified in Section 3 (Who Can Use the Services), or if you lack full capacity to enter into a binding agreement;

- Use the Services for any unlawful or non-compliant purpose, or in violation of applicable laws, regulations, rules, or guidelines;

- Modify, alter, reverse engineer, copy, disassemble, decompile, transfer, duplicate, swap, or translate the Services or any element thereof without our prior written consent;

- Use the Services for profit or any commercial or unauthorized purpose, such as sending advertisements or messages without our prior written permission;

- Use any automated system, software, bot, spider, crawler, scraping tool or interface, or any other automated device, software, or process (whether operated by a third party or otherwise) to extract, monitor, copy, or collect any data or information from the Services, or engage in any manual process to perform the same.

- Attempt to circumvent any technical measures we employ or attempt to access any part or functionality of the Services that you are not authorized to access;

- Offer the Services or any element thereof as part of any other product or service;

- Probe, scan, or test the vulnerabilities of our Services or any systems or networks;

- Intimidate or harass other users, promote pornography, violence, or discrimination based on race, gender, religion, nationality, disability, sexual orientation, or age;

- Use or develop any third-party applications that interact with the Services or content or information of other users without our prior written consent;

- Use the Services in a way that may interfere with, disrupt, negatively affect, or prevent other users from fully enjoying the Services, or engage in any behavior that may affect, damage, or harm the provision of the Services;

- Use or attempt to use other users’ accounts, usernames, or passwords without permission;

- Solicit login credentials from other users;

- Use the Services to host, display, upload, modify, publish, transmit, distribute, broadcast, store, or otherwise make available any content, materials, or information that:

- Belongs to others and you have no rights to;

- May violate applicable laws or infringe on third-party rights, including but not limited to copyrights, trademarks, or other intellectual property rights, privacy rights, or ownership;

- May encourage or instruct others to engage in illegal acts, dangerous activities, or self-harm;

- Is harmful, harassing, profane, defamatory, obscene, pornographic, pedophilic, defamatory of others, invades privacy, hateful, racially or ethnically offensive, disparaging, involves or promotes money laundering or gambling, or is otherwise unlawful;

- Harms minors in any way;

- Deceives or misleads recipients about the source of such information or disseminates any highly offensive or threatening information;

- Impersonates others;

- Is or may be perceived or interpreted as obscene, indecent, pornographic, explicit sexual content, defamatory, maliciously false, inaccurate, misleading, offensive, deceptive, bullying, threatening, or abusive;

- Is or may be perceived or interpreted as threatening, attacking, inciting violence, hate speech, hateful conduct, discrimination, defamation, encouraging or assisting illegal criminal activity, promotion or trafficking of regulated goods, fraud, scams, gambling, dangerous acts, harassment, sexual exploitation, impersonation, misinformation, or false participation;

- Contains viruses, trojans, malicious code, worms, logic bombs, software or any other computer code, files, or programs designed to interrupt, destroy or limit the functionality of any computer resource; or

- We may in our sole discretion allow or restrict others’ use of the Services, or if there is risk of loss, injury, or damage to any person or property.

We may disable, suspend, or terminate your account at any time (with or without notice to you), or block or prohibit your access to the Services; and/or delete or disable any of your user content without liability to you. Reasons may include but are not limited to: if we believe you have failed to comply with any provision of these Terms or applicable laws or regulations, or if activities under your account occur that we reasonably believe will or may harm the Services or infringe or violate any third party rights.

8. Intellectual Property Protection

We respect intellectual property rights and comply with applicable intellectual property protection laws. We sincerely request that you do the same. You agree not to infringe on anyone’s intellectual property rights while using the service. If you find any content in the service that infringes intellectual property rights you own or control, you may notify us of such infringement at uindrop@gmail.com.

9. Premium Service Subscription

Premium Services and Subscription Fees
We provide most features of this service to you free of charge. However, you may subscribe to certain features of this service ("Premium Services") and pay a subscription fee ("Subscription Fee") to use them. Premium Services are only available to users of the Apple iOS version of the service who have a valid Apple ID account. The price of the subscription fee is solely determined by us and will be displayed on the service at the time of purchase. We reserve the right to change the prices of Premium Services and/or the features and functions offered in Premium Services at any time, at our absolute discretion, and will make commercially reasonable efforts to notify you in advance of any such changes. Price changes will take effect when you renew your subscription. Therefore, please carefully read any price change notices. The currency applicable to your payment may depend on various factors (e.g., the jurisdiction where you make the purchase and the app store you use).

Payment Methods

You may pay the subscription fees through a valid Apple ID account. All payments will be processed according to the applicable terms and conditions of the Apple App Store. You agree that when paying subscription fees, (a) you authorize Apple to save the payment method information you choose and to continue charging you using the selected payment method (e.g., credit card) to avoid interruption of Premium Services; and (b) any taxes you owe may be calculated based on the billing information you provide at the time of purchase. If your payment via the selected payment method fails (e.g., the payment is declined, rejected, or not received by us), we may be unable to provide or may terminate your access to the Premium Services until the payment is properly processed, and you will be responsible for any fees, costs, expenses, or other charges resulting from such payment failure. Your payment failure may cause a change in the start date of your next Premium Service subscription period and may alter your billing date for each subscription period.

Subscription Renewal and Cancellation

You agree that your Premium Service subscription will automatically renew for the same subscription period as your previous subscription, and you authorize Apple to automatically charge the subscription fee and applicable taxes through your selected payment method at the beginning of each new subscription period. If you do not wish to use the Premium Service after the current subscription period or do not want to be charged automatically on a recurring basis, you must cancel or adjust your subscription at least 24 hours before the renewal date of the subscription period. You can cancel or adjust your Premium Service subscription via “Settings” - “iTunes & App Store” - “Apple ID” - “View Apple ID” - “Subscriptions.” After cancellation, you will still have access to the Premium Service until the end of the current subscription period, after which you will no longer be able to use the canceled Premium Service.

Free Trial

You may register for a limited free trial of the Premium Service (“Free Trial”) and may be required to provide your payment information to start the Free Trial. By providing your payment information to register for the Free Trial, you agree to such charges and authorize Apple to charge the applicable subscription fees at the end of the Free Trial period. You may cancel the Free Trial at any time, but you must cancel at least 24 hours before the Free Trial ends. If you do not cancel the Free Trial at least 24 hours before it ends, then, to the extent permitted by applicable law, we will automatically charge you the applicable subscription fees for the Premium Service after the Free Trial ends. Unless you otherwise select a subscription term, your Premium Service subscription will renew according to the renewal period of the subscription plan you selected when registering for the Free Trial. To the extent permitted by applicable law, we reserve the right to modify or terminate your Free Trial for any reason or no reason, with or without prior notice.

Refunds

You must comply with the applicable refund policies of the Apple App Store.

10. Taxes

If you incur any fees for using the service that are subject to any taxes imposed by any jurisdiction, you are responsible for paying such taxes (including any related penalties or interest). If we determine that applicable law requires us to collect any applicable taxes, we reserve the right to collect such taxes. We also reserve the right to request proof related to taxes from you and to report amounts paid and/or withheld from payments to you to tax authorities.

11. Your Feedback

By sending, submitting, or otherwise providing any feedback, ideas, suggestions, documents, proposals, or other materials (“Feedback”) to us or our personnel, you irrevocably grant us a sublicensable, transferable, perpetual, worldwide, and unrestricted license to use, utilize, or disclose such Feedback in any manner and for any purpose without any compensation or payment to you or any third party, whether such Feedback is in whole or in part, and whether the content is provided as-is or modified. You also agree that we have no obligation to review, consider, use, or implement your Feedback, nor do we treat your Feedback as confidential information.

12. Disclaimer

Nothing in these terms affects any statutory rights you may have as a consumer that cannot be altered or waived by contract. You expressly understand and agree that the service is provided on an "as is" and "as available" basis, without any warranties of any kind, either express or implied. To the fullest extent permitted by applicable law, the parties of UinDrop disclaim all warranties, including but not limited to the warranties of merchantability, fitness for a particular purpose, performance or suitability for intended use, ownership, and non-infringement with respect to the service (including all information, content, and materials contained therein). Specifically, we do not represent or warrant that: (1) the service will meet your requirements; (2) the service will be uninterrupted, secure, complete, reliable, available, or error-free; or (3) any errors or defects in the service will be corrected. Although we strive to ensure your safe access and use of the service, we cannot and do not represent or warrant that the service is free of viruses or other harmful components, or that data will be transmitted securely. Any documents or materials transmitted, downloaded, or otherwise obtained through the use of the service are accessed or used at your own discretion and risk. You assume full responsibility for any damage to your equipment or loss of data or content resulting therefrom. We may, at any time and for business or operational reasons, change, suspend, withdraw, restrict, or terminate all or part of the availability of our service, with or without notice.

13. Governing Law

These terms shall be governed by and construed in accordance with the laws of China in all respects, without regard to any conflict of law rules or principles.

14. Dispute Resolution

You agree that for any claim, dispute, or controversy ("Dispute") arising out of or related to these Terms, including any question regarding the existence, validity, or termination of these Terms, you shall first contact us. Both parties agree to attempt to resolve such Disputes in good faith.

For any unresolved Disputes, both parties agree to submit such Disputes to arbitration, which shall be finally resolved under the arbitration rules of the China International Economic and Trade Arbitration Commission (CIETAC), which are deemed incorporated by reference into these Terms. The place of arbitration shall be China. The arbitral tribunal shall consist of three (3) arbitrators. The language of arbitration shall be Chinese.

To the maximum extent permitted by law, disputes between you and any third party (such as service providers or copyright holders) arising from your use of the Service shall be resolved directly between you and such third party. UinDrop shall not be responsible for any claims, demands, or damages (whether direct or indirect) of any kind arising from or related to your disputes with third parties. You hereby irrevocably release UinDrop from any and all claims and liabilities arising from or related to your disputes with third parties, and agree to defend and indemnify UinDrop.

15. Other Terms

Force Majeure: We shall not be held responsible for any failure to perform our obligations under this Agreement due to causes beyond our reasonable control.

Entire Agreement: These Terms, together with any other terms or policies incorporated herein by reference, constitute the entire agreement between you and us regarding your use of the Service and supersede all prior agreements and communications between you and us concerning your use of the Service.

Severability: If any provision of these Terms is found to be invalid or unenforceable, such provision shall be deemed severable from these Terms without affecting the validity and enforceability of the remaining provisions. Where possible, such provision shall be replaced by a valid and enforceable provision under applicable laws and regulations that closely reflects the original intent of the parties, so that the agreements and transactions contemplated under this Agreement can be fulfilled as closely as possible to the original plan. The remaining provisions of these Terms shall remain in full force and effect.

Assignment: We may freely assign, transfer, or subcontract all or any of our rights or obligations under these Terms to any third party without notifying you. You may not assign these Terms without our prior written consent.

Survival: Upon termination of these Terms, any provisions that by their nature or express terms should continue to apply shall remain in effect.

Third-Party Rights: Except for you and us, no third party shall have the right to rely on or enforce these Terms, unless otherwise stated herein.

16. Contact Us

If you have any questions or would like to learn more about the Service, please contact us at uindrop@gmail.com.

17. Apple App Store Specific Terms

Your use of the Service provided as an application through the Apple App Store (the “iOS Application”) is subject to any policies issued by Apple Inc. or its affiliates or subsidiaries (collectively, “Apple”) that apply to the use of such services, including the Apple Media Services Terms and Conditions, which can be found at https://www.apple.com/legal/internet-services/itunes/.

You acknowledge:

- If any third-party content is provided or accessible through the iOS Application, the third party providing such content is solely responsible for that content;

- We may, from time to time, adjust your visibility, status, or ranking on the iOS Application in accordance with these terms;

- We (and not Apple) license or provide the iOS Application to you under these terms, and these terms constitute the agreement between you and us (not Apple);

- The license granted to you in the iOS Application is a non-transferable license to use the iOS Application on any Apple-branded products you own or control, subject to the usage rules in the App Store Terms of Service, but the iOS Application may be accessed and used via iOS Family Sharing or volume purchases by other accounts associated with the purchaser;

- You and we acknowledge and agree that Apple has no obligation to provide any maintenance or support services regarding the iOS Application;

- You are solely responsible for ensuring that any account you use to log into the service complies with the policies applicable to that account;

- Apple Inc. and its affiliates bear no responsibility or liability for any content provided through the service, and between you and Apple, you (not Apple) bear full responsibility for your use of the service and its content;

- If the iOS Application fails to meet any applicable warranty, you may notify Apple, who will refund the purchase price of the iOS Application; to the maximum extent permitted by law, Apple has no other warranty obligations and any other claims, losses, liabilities, damages, costs, or expenses arising from failure to meet any warranty shall be borne by us (not Apple);

- Between Apple and us, (a) we (not Apple) are responsible for handling any claims you or any third party may have regarding the iOS App or your ownership and/or use of the iOS App, including but not limited to: (i) product liability claims; (ii) any claims that the iOS App does not comply with any applicable laws or regulatory requirements; and (iii) claims under consumer protection, privacy, or similar laws; (b) if any third party claims that the iOS App or your use thereof infringes on their intellectual property rights, we (not Apple) are fully responsible for investigating, defending, resolving, and indemnifying such claims;

- We do not grant you any rights to use Apple Inc.’s or its affiliates’ intellectual property (including trademarks). Your use of such intellectual property is governed by the Apple Media Services Terms and Conditions and any other policies Apple may issue regarding platform use, as applicable;

- We may need to modify the service or these terms to comply with Apple’s instructions. You agree that we have the right to make such changes immediately without prior notice and without any liability to you or others;

- Apple and its subsidiaries are third-party beneficiaries of these terms, and upon your acceptance of these terms, Apple has the right (and is deemed to have accepted this right) to enforce these terms as a third-party beneficiary.

18. Specific Terms for Indonesia

If you use our services in Indonesia, the following additional terms apply. In case of any conflict between these additional terms and the main body of these terms, these additional terms shall prevail.

- Agreement to Terms: By using this service, you confirm that you are at least 21 years old, or married, or not under guardianship. If you are under 21 years old and unmarried or under guardianship, you represent and warrant that you have obtained consent from your parents or legal guardians to use this service. If you have not obtained such consent, or if your parents or guardians are unwilling to give consent, you must stop using this service.