Terms of Service
Last updated: 2026-06-02
Welcome to QTags. These Terms of Service (“Terms”) govern your use of the QTags mobile application and the website at https://qtags.app (collectively, the “Service”), operated by Oleg Shakirov(“we”, “our”, or “us”). By using the Service, you agree to these Terms and to our Privacy Policy.
English is the binding version of these Terms. Translations that may be provided for convenience do not modify their meaning or effect.
1. Acceptance of these Terms
By creating an account or using the Service, you confirm that you have read, understood, and agree to be bound by these Terms. If you do not agree, do not use the Service.
2. Eligibility
You must be at least 13 years old to use the Service (or 16 in the European Union, where applicable). By using the Service you represent that you meet the minimum age requirement in your jurisdiction and that you have the legal capacity to enter into these Terms.
3. Account and authentication
You authenticate via Sign in with Apple, Google Sign-in, or a one-time email password. You are responsible for maintaining the security of the credentials and email account you use to access the Service. Notify us immediately at os.maintainer@gmail.com if you suspect unauthorized access.
You agree to provide accurate information and to keep it current. Each account is intended for use by a single individual; do not share accounts.
4. Acceptable use
You agree NOT to:
- Use the Service for any unlawful purpose or in violation of any applicable law.
- Upload, store, or share content that infringes others’ intellectual property, privacy, or publicity rights, or that is defamatory, harassing, threatening, hateful, or sexually explicit involving minors.
- Attempt to gain unauthorized access to other users’ accounts, to our systems, or to data you are not entitled to.
- Reverse engineer, decompile, or attempt to derive the source code of the Service, except to the extent applicable law permits.
- Use automated systems (bots, scrapers) to access the Service in a manner that imposes an unreasonable load on our infrastructure.
- Resell, sublicense, rent, lease, or commercially exploit the Service without our prior written consent.
- Circumvent, disable, or interfere with security or access-control features of the Service.
5. Your content
You retain all ownership rights to the content you create in the Service (notes, tags, and lists). You grant us a limited, worldwide, non-exclusive, royalty-free license to store, process, transmit, and display your content solely for the purpose of providing the Service to you. This license terminates when you delete your content or your account.
We do not claim ownership of your content, and we do not use your content to train artificial intelligence or machine learning models or for any purpose other than operating the Service for you.
You are responsible for the content you upload and for ensuring you have all rights necessary to do so.
6. Our intellectual property
The Service — including its design, code, trademarks, logos, and the content authored by us — is owned by us or our licensors and is protected by intellectual-property laws. These Terms do not grant you any right to use our trademarks or branding outside of ordinary use of the Service.
7. Subscriptions, payments, free tier
The core Service is currently free of charge. We may introduce paid features or subscription plans in the future. Any paid plans will be presented with their own terms regarding pricing, billing, automatic renewal, refunds, and cancellation, and will be subject to your explicit agreement at the point of purchase.
In-app purchases on iOS are processed by Apple under Apple’s own terms; refunds for those purchases are handled by Apple according to its policies.
8. Service availability and changes
We aim for high availability but do not guarantee uninterrupted or error-free access. We may modify, suspend, or discontinue the Service (in whole or in part) at any time, with reasonable notice where practical.
9. Termination
You may delete your account at any time through the app (Settings) or by emailing us. We may suspend or terminate your account if you materially violate these Terms, after notice where appropriate, or immediately in cases of serious abuse. Upon termination, your right to use the Service ends and your data is deleted in accordance with the Privacy Policy.
10. Disclaimers
The Service is provided “as is” and “as available” without warranties of any kind, express or implied, including warranties of merchantability, fitness for a particular purpose, and non-infringement. We do not warrant that the Service will be error-free or uninterrupted, that any defect will be corrected, or that your data will always be preserved or recoverable.
You are responsible for maintaining your own backups of important data. The Exportfeature in Settings produces a portable JSON file containing your data — we strongly recommend exporting periodically.
11. Limitation of liability
To the maximum extent permitted by applicable law, in no event will we be liable for indirect, incidental, special, consequential, exemplary, or punitive damages (including loss of data, loss of profits, loss of goodwill, or business interruption) arising from your use of, or inability to use, the Service, even if we have been advised of the possibility of such damages.
Our total aggregate liability under these Terms will not exceed the greater of (a) one hundred euros (€100) or (b) the amount you paid us for the Service in the twelve months preceding the claim.
Some jurisdictions do not permit the exclusion of certain warranties or limitation of liability for incidental or consequential damages. The above limitations apply only to the extent permitted by your local law; statutory consumer rights are not affected.
12. Indemnification
You agree to indemnify and hold us harmless from any claims, damages, liabilities, costs, and expenses (including reasonable legal fees) arising from your content, your use of the Service in violation of these Terms, or your violation of any third party’s rights.
13. Apple App Store — additional terms
If you obtained the iOS app via the Apple App Store, you acknowledge and agree:
- These Terms are concluded between you and us only, and not with Apple. Apple is not responsible for the app or its content.
- Apple has no obligation to furnish maintenance or support for the app.
- In the event of any failure of the app to conform to any applicable warranty, you may notify Apple, who will refund the purchase price (if any) for the app to you. Apple has no further warranty obligation whatsoever with respect to the app.
- We (not Apple) are responsible for addressing any claims by you or any third party relating to the app.
- Apple Inc. and its subsidiaries are third-party beneficiaries of these Terms and may enforce them against you as such.
- You will comply with applicable third-party terms of agreement when using the app.
- You represent and warrant that you are not located in a country subject to a U.S. Government embargo or designated as a “terrorist-supporting” country, and you are not on any U.S. Government list of prohibited or restricted parties.
14. Changes to these Terms
We may update these Terms. Material changes will be notified at least 30 days before they take effect, by email or in-app notice. Continued use of the Service after the effective date constitutes acceptance of the updated Terms. If you do not accept the changes, your remedy is to stop using the Service and delete your account.
15. Governing law and disputes
These Terms are governed by the laws of the Republic of Cyprus, without regard to its conflict-of-laws rules. Disputes will be resolved in the competent courts of Nicosia, Cyprus.
Nothing in this clause limits the rights you may have as a consumer under mandatory provisions of the law of your country of residence, including the right to bring claims in the courts of that country.
16. Severability
If any provision of these Terms is held invalid or unenforceable, the remaining provisions remain in full force and effect. The invalid or unenforceable provision will be modified to the minimum extent necessary to be enforceable while preserving the parties’ original intent.
17. Entire agreement
These Terms, together with the Privacy Policy, constitute the entire agreement between you and us regarding the Service and supersede all prior agreements on the same subject matter.
18. Contact
Questions about these Terms:
- Email: os.maintainer@gmail.com
- Operator: Oleg Shakirov
See also our Privacy Policy.