Terms of Use

Effective Date: March 12, 2026

1. Acceptance of Terms

By downloading, installing, accessing, or using Authenticator ("the App"), you acknowledge that you have read, understood, and agree to be bound by these Terms of Use ("Terms"). If you do not agree to these Terms, you must immediately cease all use of the App and delete it from your device.

These Terms constitute a legally binding agreement between you ("User," "you," or "your") and the developer of Authenticator ("we," "us," or "our"). By using the App, you also agree to comply with all applicable local, national, and international laws and regulations.

2. Description of Service

Authenticator is a two-factor authentication (2FA) application designed to enhance the security of your online accounts. The App provides the following core functionality:

Generation of time-based one-time passwords (TOTP) in accordance with RFC 6238
Generation of HMAC-based one-time passwords (HOTP) in accordance with RFC 4226
QR code scanning for rapid account enrollment
Manual entry of secret keys and account configuration
Encrypted local storage of account data using AES-256 encryption
Biometric and PIN-based app protection
Encrypted backup and restore functionality
Optional cloud synchronization with end-to-end encryption
Home screen widgets for quick code access
Account organization through categories and favorites

The App operates primarily on your local device. Certain optional features, such as cloud sync and premium services, may require network connectivity and interaction with third-party services.

3. Eligibility

You must be at least 13 years of age to use the App. If you are between the ages of 13 and 18 (or the age of legal majority in your jurisdiction), you may only use the App with the consent and supervision of a parent or legal guardian who agrees to be bound by these Terms.

By using the App, you represent and warrant that you meet the eligibility requirements set forth in this section and that you have the legal capacity to enter into these Terms.

4. License Grant

Subject to your compliance with these Terms, we grant you a limited, non-exclusive, non-transferable, non-sublicensable, revocable license to download, install, and use the App on devices that you own or control, solely for your personal, non-commercial use.

This license does not grant you any right, title, or interest in or to the App beyond the limited usage rights expressly granted herein. All rights not expressly granted are reserved by us.

5. Restrictions on Use

You agree that you will not, and will not permit any third party to:

Copy, modify, adapt, translate, or create derivative works based on the App or any part thereof
Reverse-engineer, decompile, disassemble, or otherwise attempt to derive the source code of the App, except to the extent expressly permitted by applicable law
Remove, alter, or obscure any copyright, trademark, or other proprietary notices contained in or on the App
Distribute, sublicense, lease, rent, loan, or otherwise transfer the App or any rights therein to any third party
Use the App for any unlawful, fraudulent, or malicious purpose, or in violation of any applicable laws or regulations
Use the App to facilitate unauthorized access to third-party systems, accounts, or data
Interfere with, disrupt, or attempt to gain unauthorized access to any servers, networks, or systems connected to the App
Use the App in any manner that could damage, disable, overburden, or impair any of our systems or services
Use any automated means, including bots, scrapers, or crawlers, to access or interact with the App
Use the App to infringe upon the intellectual property rights of any third party

6. User Responsibilities

6.1 Device Security

You are solely responsible for maintaining the physical security of any device on which the App is installed, as well as the confidentiality and security of any PIN, biometric settings, or other access credentials used to protect the App. We are not responsible for any unauthorized access to the App resulting from your failure to secure your device or credentials.

6.2 Backup and Data Preservation

You are solely responsible for creating, maintaining, and securely storing backups of your account data. The App provides encrypted backup functionality for this purpose. We strongly recommend creating regular backups and storing them in a secure location. In the event of device loss, damage, theft, or software malfunction, data that has not been backed up cannot be recovered by us. We shall have no liability for any loss of data resulting from your failure to maintain adequate backups.

6.3 Account Security

You acknowledge that the OTP codes generated by the App are used to secure access to your third-party accounts. You are responsible for ensuring that your use of the App is consistent with the security requirements and policies of the services you are protecting. We are not responsible for any unauthorized access to your third-party accounts, regardless of the cause.

6.4 Accurate Information

When adding accounts to the App, you are responsible for ensuring that the secret keys and configuration parameters are entered accurately. Incorrect configuration may result in the generation of invalid codes, which could prevent you from accessing your accounts.

7. Intellectual Property

The App, including but not limited to its source code, object code, design, layout, graphics, user interface, icons, logos, trademarks, service marks, trade names, and all other intellectual property embodied therein, is and shall remain the exclusive property of the developer and is protected by international copyright, trademark, patent, trade secret, and other intellectual property or proprietary rights laws.

Nothing in these Terms shall be construed as granting you any license or right to use any of our trademarks, logos, or service marks without our prior written consent.

You acknowledge that any feedback, suggestions, ideas, or other information you provide regarding the App ("Feedback") may be used by us without restriction, compensation, or attribution. You hereby assign to us all right, title, and interest in and to any such Feedback.

8. Third-Party Services

The App may integrate with or provide access to third-party services, including but not limited to:

Apple App Store: The App is distributed through the Apple App Store. Your download and use of the App is also subject to the Apple App Store Terms of Service and Apple's End User License Agreement (EULA).
Firebase (optional): If you choose to enable cloud sync, your encrypted data may be transmitted through and stored on Firebase services provided by Google LLC. Your use of Firebase is subject to Google's Terms of Service and Privacy Policy.
RevenueCat (optional): In-app purchase management may be facilitated through RevenueCat. Purchase transactions are processed by Apple and are subject to Apple's terms.

We are not responsible for the availability, accuracy, content, or policies of any third-party services. Your use of third-party services is at your own risk and subject to the terms and conditions of those services. We encourage you to review the terms and privacy policies of any third-party services you interact with through the App.

9. In-App Purchases and Premium Features

The App may offer optional premium features available through in-app purchases. All purchases are processed through the Apple App Store and are subject to Apple's payment terms and refund policies.

Premium features are provided on a subscription or one-time purchase basis, as described at the point of sale within the App.
Subscription renewals are managed through your Apple ID settings. You may cancel a subscription at any time through your device's subscription management interface.
Refunds for in-app purchases are handled exclusively by Apple in accordance with their refund policy.
We reserve the right to modify premium features, pricing, or availability at any time, subject to applicable law.

10. Updates and Modifications

We may, from time to time, release updates, patches, bug fixes, or new versions of the App. Such updates may be required for you to continue using the App and may be downloaded and installed automatically depending on your device settings. You agree that we may automatically update the App and that these Terms will apply to all such updates.

We reserve the right to modify, suspend, or discontinue the App or any feature thereof, temporarily or permanently, with or without notice. We shall not be liable to you or any third party for any modification, suspension, or discontinuation of the App.

11. Disclaimer of Warranties

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, THE APP IS PROVIDED ON AN "AS IS" AND "AS AVAILABLE" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND NON-INFRINGEMENT.

WE DO NOT WARRANT THAT:

The App will meet your specific requirements or expectations
The App will be uninterrupted, timely, secure, or error-free
The OTP codes generated by the App will always be accepted by third-party services
Any errors or defects in the App will be corrected
The App will be free of viruses, malware, or other harmful components
The encryption methods employed by the App are impenetrable or will protect against all threats

While we implement industry-standard encryption and security measures, no method of electronic storage or transmission is 100% secure. You acknowledge and accept the inherent risks associated with storing sensitive authentication data electronically.

12. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL THE DEVELOPER, ITS AFFILIATES, OFFICERS, DIRECTORS, EMPLOYEES, AGENTS, OR LICENSORS BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY, OR PUNITIVE DAMAGES, INCLUDING BUT NOT LIMITED TO:

Loss of data, including OTP secrets, account information, or backup data
Loss of access to your third-party accounts
Unauthorized access to your accounts resulting from device compromise, phishing, or any other cause
Financial losses resulting from inability to access services protected by two-factor authentication
Damages arising from the use or inability to use the App
Damages arising from any third-party service failures or data breaches
Loss of profits, revenue, business, or anticipated savings

IN NO EVENT SHALL OUR TOTAL AGGREGATE LIABILITY TO YOU FOR ALL CLAIMS ARISING OUT OF OR RELATING TO THESE TERMS OR THE APP EXCEED THE AMOUNT YOU HAVE PAID TO US FOR THE APP IN THE TWELVE (12) MONTHS PRECEDING THE CLAIM, OR TEN US DOLLARS (US $10.00), WHICHEVER IS GREATER.

THE LIMITATIONS SET FORTH IN THIS SECTION SHALL APPLY REGARDLESS OF THE FORM OF ACTION, WHETHER IN CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY, OR OTHERWISE, AND EVEN IF WE HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

SOME JURISDICTIONS DO NOT ALLOW THE EXCLUSION OR LIMITATION OF CERTAIN DAMAGES. IN SUCH JURISDICTIONS, OUR LIABILITY SHALL BE LIMITED TO THE GREATEST EXTENT PERMITTED BY LAW.

13. Indemnification

You agree to indemnify, defend, and hold harmless the developer, its affiliates, officers, directors, employees, agents, and licensors from and against any and all claims, liabilities, damages, losses, costs, and expenses (including reasonable attorneys' fees) arising out of or in connection with:

Your use of the App
Your violation of these Terms
Your violation of any applicable law or regulation
Your violation of any rights of a third party
Any claim that your use of the App caused damage to a third party

14. Termination

These Terms are effective until terminated. We may terminate or suspend your access to the App at any time, without prior notice or liability, for any reason, including without limitation if you breach these Terms.

You may terminate these Terms at any time by deleting the App from all of your devices and ceasing all use thereof.

Upon termination, all licenses and rights granted to you under these Terms shall immediately cease. The following sections shall survive termination: Intellectual Property, Disclaimer of Warranties, Limitation of Liability, Indemnification, Governing Law and Dispute Resolution, and any other provisions that by their nature should survive termination.

15. Governing Law and Dispute Resolution

These Terms shall be governed by and construed in accordance with the laws of the Republic of Turkey, without regard to its conflict of laws principles.

Any dispute, controversy, or claim arising out of or relating to these Terms, or the breach, termination, or invalidity thereof, shall first be attempted to be resolved through good-faith negotiation. If the dispute cannot be resolved through negotiation within thirty (30) days, either party may submit the dispute to the competent courts of Turkey.

Notwithstanding the foregoing, either party may seek injunctive or other equitable relief in any court of competent jurisdiction to prevent the actual or threatened infringement, misappropriation, or violation of a party's intellectual property rights.

16. Severability

If any provision of these Terms is found to be unlawful, void, or unenforceable by a court of competent jurisdiction, that provision shall be deemed severable from these Terms and shall not affect the validity and enforceability of the remaining provisions. The unenforceable provision shall be replaced with a valid and enforceable provision that most closely reflects the intent and economic effect of the original provision.

17. Waiver

The failure of either party to enforce any right or provision of these Terms shall not constitute a waiver of such right or provision. Any waiver of any provision of these Terms shall be effective only if in writing and signed by the waiving party.

18. Entire Agreement

These Terms, together with the Privacy Policy and any additional terms presented to you in connection with specific features of the App, constitute the entire agreement between you and us with respect to the App and supersede all prior or contemporaneous communications, proposals, and agreements, whether oral or written, between you and us regarding the App.

19. Assignment

You may not assign or transfer these Terms or any rights or obligations hereunder, in whole or in part, without our prior written consent. We may assign these Terms or any rights or obligations hereunder without your consent. Any attempted assignment in violation of this section shall be null and void. Subject to the foregoing, these Terms shall bind and inure to the benefit of the parties and their respective successors and permitted assigns.

20. Changes to These Terms

We reserve the right to modify, amend, or update these Terms at any time at our sole discretion. When we make material changes, we will update the "Effective Date" at the top of this page and, where practicable, provide notice through the App or via other appropriate means.

Your continued use of the App after any changes to these Terms constitutes your acceptance of such changes. If you do not agree with the revised Terms, you must stop using the App and delete it from your devices.

We encourage you to review these Terms periodically to stay informed of any updates.

21. Apple-Specific Terms

The following additional terms apply when you download the App from the Apple App Store:

These Terms are between you and the developer only, and not with Apple Inc. ("Apple"). Apple is not responsible for the App or its content.
Apple has no obligation to provide maintenance or support services for the App.
In the event of any failure of the App to conform to any applicable warranty, you may notify Apple and Apple will refund the purchase price (if any) to you. To the maximum extent permitted by applicable law, Apple has no other warranty obligation with respect to the App.
Apple is not responsible for addressing any claims you or any third party may have relating to the App, including product liability claims, any claim that the App fails to conform to any applicable legal or regulatory requirement, and claims arising under consumer protection or similar legislation.
In the event of any third-party claim that the App or your use of it infringes a third party's intellectual property rights, Apple is not responsible for the investigation, defense, settlement, or discharge of such claim.
Apple and its subsidiaries are third-party beneficiaries of these Terms. Upon your acceptance of these Terms, Apple will have the right (and will be deemed to have accepted the right) to enforce these Terms against you as a third-party beneficiary thereof.
You represent and warrant that you are not located in a country subject to a U.S. Government embargo, or that has been designated by the U.S. Government as a "terrorist supporting" country, and you are not listed on any U.S. Government list of prohibited or restricted parties.

22. Contact Information

If you have any questions, concerns, or complaints regarding these Terms of Use, please contact us at:

support@authenticatorapp.com