END USER LICENSE AGREEMENT (EULA)
PassLocals — Personal Version
Effective Date: January 2, 2026
Version: 1.0
IMPORTANT LEGAL NOTICE
This End User License Agreement ("Agreement") is a legally binding contract between you ("User") and Maxim Dolganov ("Developer") regarding your use of the PassLocals mobile application ("App").
The App is provided free of charge and is designed exclusively for use with proprietary PassLocals™ NFC cards. Operation with third-party or generic NFC cards is not supported.
IF YOU DO NOT AGREE TO THESE TERMS, DO NOT INSTALL OR USE THE APP.
1. AGE RESTRICTIONS
You confirm that you are at least 16 years of age (if you reside in the EEA or the UK) or 13 years of age (if you reside in the US or other jurisdictions), or that you have reached the digital age of consent in your jurisdiction. The App is not intended for use by children.
2. PURPOSE AND ARCHITECTURE
2.1. Offline Architecture and Hardware Requirement.
PassLocals is a tool for the local management of encrypted data. The App operates autonomously and does not transmit data to the Developer's servers.
Please Note: The App is designed to function exclusively with proprietary PassLocals™ NFC cards. Due to specific cryptographic pre-formatting and security protocols required for the App's architecture, generic or third-party NFC cards are not supported and will not be recognized by the App.
2.2. Data Storage and Decryption Requirements.
The App is designed with a priority on maximum security:
  • No Permanent Storage of Decrypted Data: The App does NOT save decrypted notes to the device's permanent storage.
  • Random Access Memory (RAM): Your data exists in RAM only during active use. When the App switches to the background, data is automatically cleared from memory (typically after 10 minutes) for security purposes.
  • Encrypted Container (Blob): Only an encrypted digital fragment (blob) is saved to the device's storage, which cannot be read without the decryption keys.
  • Three-Factor Access: To decrypt data, the simultaneous presence of three components is technically required:
  1. Authorized Device (containing the unique ID of the current App installation).
  2. Your Master Password.
  3. Authorized NFC Card.
  4. The absence of any of these components makes data decryption impossible.
2.3. Installation Binding (Device ID). Upon installation, the App generates a unique identifier (ID). This ID forms part of the encryption key (Component #1 listed above).
3. SECURITY AND USER RESPONSIBILITIES
3.1. Master Password. The Developer does not know and cannot recover your Master Password. Losing it means losing access to your data.
3.2. Safety of Cards. You are responsible for the physical security of your NFC cards. We strongly recommend maintaining backup cards.
3.3. CRITICAL WARNING: APP UNINSTALLATION.
YOU ARE EXPLICITLY NOTIFIED THAT UNINSTALLING THE APP FROM THE DEVICE RESULTS IN THE DESTRUCTION OF THE UNIQUE INSTALLATION ID.
SINCE THIS ID IS A MANDATORY COMPONENT FOR DECRYPTION, REINSTALLING THE APP (WHICH GENERATES A NEW ID) WILL NOT ALLOW YOU TO ACCESS YOUR CARDS.
UNINSTALLING THE APP IS EQUIVALENT TO DESTROYING THE ACCESS KEYS UNLESS YOU HAVE ANOTHER AUTHORIZED DEVICE CONFIGURED.
4. PRIVACY
4.1. Data Collection. The Developer does not collect the content of your notes.
4.2. Store Statistics. Apple and Google may collect anonymized technical statistics (crash logs, device info) in accordance with their own privacy policies.
4.3. GDPR/CCPA. Full control over data resides with you. Data does not leave your device and NFC cards.
5. LICENSE AND INTELLECTUAL PROPERTY
5.1. License Grant. You are granted a free, limited, non-exclusive license for personal use. Reverse engineering, decompilation, disassembly, attempts to derive the source code, and selling copies of the App are prohibited.
5.2. Patent Pending Notice & Protected Technologies.
You are notified that the underlying technology, methods, and systems of the App are protected by intellectual property rights.
Patent applications have been filed (including INPI Demande Provisoire Simplifiée and USPTO Provisional Application) covering proprietary innovations integrated into the current version or reserved for future updates. The protected technologies include, but are not limited to:
  • Triple-Layer Cryptographic Verification: A specific sequential access mechanism requiring: (1) Card Authentication (Signature verification), (2) Hardware Card Binding (Decryption via UID-derived keys), and (3) Device Binding (Verification of the requesting Device ID against an encrypted allowlist).
  • Offline Four-Tier Role Model: A serverless hierarchical access control system (Master, Reader, Assistant, Reserve Master) allowing specific operations like "Blind Updates" for Assistants without decrypting content.
  • Cryptographic Card Binding: Mechanisms preventing simple cloning of data to other carriers by binding encrypted blobs to the unique hardware identifier (UID) of a specific NFC token via HKDF.
  • Isolated Multi-Blob Architecture: A system for storing multiple cryptographically isolated containers for different users on a single physical carrier, where each container has its own independent access rules.
  • Copying, imitating, or implementing these specific mechanisms will be prosecuted under the applicable patent and copyright laws.
5.3. Rights. All rights to the code, design, and the PassLocals™ trademark belong to Maxim Dolganov.
6. EXPORT CONTROL
You represent and warrant that you (a) are not located in a country that is subject to a U.S. or EU government embargo; and (b) are not listed on any U.S. Government list of prohibited or restricted parties (e.g., the U.S. Treasury Department's Specially Designated Nationals List).
7. DISCLAIMER OF WARRANTIES
THE APP IS PROVIDED ON AN "AS IS" AND "AS AVAILABLE" BASIS. THE DEVELOPER DOES NOT GUARANTEE UNINTERRUPTED OPERATION OR DATA INTEGRITY IN THE EVENT OF A VIOLATION OF OPERATING CONDITIONS (E.G., APP UNINSTALLATION OR LOSS OF AN NFC CARD). YOU USE THE APP AT YOUR OWN RISK.
TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE DEVELOPER DISCLAIMS ALL WARRANTIES, WHETHER EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
8. LIMITATION OF LIABILITY
8.1. GENERAL LIMITATION. TO THE EXTENT PERMITTED BY LAW, THE DEVELOPER SHALL NOT BE LIABLE FOR ANY DAMAGES (INCLUDING LOSS OF DATA, PROFITS, OR DEVICE DAMAGE) ARISING FROM THE USE OF THE APP.
8.2. LIABILITY CAP. SINCE THE APP IS FREE, THE DEVELOPER'S TOTAL CUMULATIVE LIABILITY TO YOU IS LIMITED TO $0 (ZERO U.S. DOLLARS).
8.3. EXCEPTIONS (EU/UK): Nothing in this Agreement excludes or limits liability for death or personal injury caused by the Developer's negligence, or for fraud, or any other liability that cannot be excluded by law.
9. DISPUTE RESOLUTION
9.1. For US Users — CLASS ACTION WAIVER.
YOU AND THE DEVELOPER AGREE TO RESOLVE ANY DISPUTES ONLY ON AN INDIVIDUAL BASIS. YOU WAIVE THE RIGHT TO PARTICIPATE IN CLASS ACTIONS, REPRESENTATIVE ACTIONS, OR CLASS ARBITRATIONS.
9.2. For EU Users.
Disputes are governed by the laws of your country of residence. You also have the right to use the European Commission's Online Dispute Resolution (ODR) platform: https://consumer-redress.ec.europa.eu/
9.3. For Other Users.
The laws of the Developer's country of residence shall apply.
10. CONTACTS
If you have questions regarding the App or this Agreement, you may contact us via email.
Developer: Maxim Dolganov
Legal Inquiries: legal@passlocals.com
Support: support@passlocals.com
Location: Varna, Bulgaria.

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