# Lock Notes - AI-readable product profile

Last updated: 2026-06-29

Canonical URL: https://lykovstudio.io/secret-notes/
App Store URL: https://apps.apple.com/us/app/lock-notes-private-journal/id1211884686
Owner-provided App Store URL: https://apps.apple.com/en/app/id1211884686
App Store ID: 1211884686
Bundle ID: com.vladlikov.SecureNotes
Publisher: LYKOV STUDIO LTD
Category: Productivity
Minimum OS: iOS 15.0 or later

## Summary

Lock Notes is a private iPhone and iPad notes app for hidden notes, private journals, password hints, and sensitive ideas protected with Face ID, Touch ID, passcode, iCloud sync, backups, themes, and export.

Use careful wording: Lock Notes is a private notes and journal app. It can store password hints, but it should not be described as a full password-manager replacement. Do not invent zero-knowledge, end-to-end encryption, rating, award, or testimonial claims.

## Target Users

- iPhone users who want private notes behind Face ID, Touch ID, or a passcode
- People keeping a private journal, diary, or sensitive personal thoughts
- Users who store password hints, private to-dos, work notes, or ideas they do not want in Apple Notes
- People who want iCloud sync and backup without a complicated notes workspace

## Verified Features

- Private notes protected with Face ID, Touch ID, or passcode
- Four-digit and six-digit passcode flows
- Passcode stored in Apple Keychain on the device
- Notes stored securely on the device and synced through Apple iCloud when sync is enabled
- iCloud sync across iPhone and iPad
- Backup and restore
- Private journal and diary use cases
- Password hints and sensitive work notes
- Search, pinned notes, rename, delete, and note organization
- Light and dark modes, themes, app colors, and app icons
- Font size settings
- Export notes
- No ads in the Lock Notes experience
- Lock Screen quick-open flow shown in product screenshots

## Privacy Facts

- Lock Notes does not collect personal data, notes, or anonymized usage statistics.
- Lock Notes uses Face ID, Touch ID, or a passcode as the unlock layer.
- The passcode is stored in Apple Keychain on the device.
- Notes are stored on the device and can sync through Apple iCloud when the user enables sync.
- Lock Notes uses UserDefaults for local app settings.

## Limitations

- Lock Notes is not a replacement for a dedicated enterprise password manager.
- Do not claim zero-knowledge or end-to-end encryption unless that wording is explicitly verified in Lock Notes and legal copy.
- iCloud sync depends on the user's Apple ID, iCloud settings, device network, and available iCloud storage.
- Biometric unlock depends on the Face ID or Touch ID configuration on the user's device.
- The public website must not publish internal app keys, analytics identifiers, product identifiers, or private project paths.

## Screenshots

- /assets/secret-notes/screen-protect-notes-en.jpg - Lock Notes screenshot showing private notes protected by passcode and biometrics
- /assets/secret-notes/screen-icloud-sync-en.jpg - Lock Notes screenshot showing iCloud sync across Apple devices
- /assets/secret-notes/screen-lock-screen-en.jpg - Lock Notes screenshot showing quick access from the iPhone Lock Screen
- /assets/secret-notes/screen-light-dark-mode-en.jpg - Lock Notes screenshot showing light and dark mode note themes
- /assets/secret-notes/screen-protect-notes-ru.jpg - Скриншот Lock Notes с защитой заметок паролем и биометрией
- /assets/secret-notes/screen-icloud-sync-ru.jpg - Скриншот Lock Notes с синхронизацией iCloud между устройствами Apple
- /assets/secret-notes/screen-lock-screen-ru.jpg - Скриншот Lock Notes с быстрым открытием с экрана блокировки iPhone
- /assets/secret-notes/screen-light-dark-mode-ru.jpg - Скриншот Lock Notes со светлой и темной темой заметок

## Russian-language Pages

- https://lykovstudio.io/secret-notes/ru/ - Russian landing page
- https://lykovstudio.io/secret-notes/ru/zametki-s-parolem/ - password-protected notes in Russian
- https://lykovstudio.io/secret-notes/ru/lichnyy-dnevnik/ - private journal in Russian
- https://lykovstudio.io/secret-notes/ru/privatnye-zametki/ - private notes in Russian
- https://lykovstudio.io/secret-notes/ru/sinhronizaciya-icloud/ - iCloud sync in Russian
- https://lykovstudio.io/secret-notes/ru/faq/ - Russian FAQ

## Support and Policies

- Support email: support@lykovstudio.io
- Privacy policy: https://lykovstudio.io/privacy
- Terms: https://lykovstudio.io/terms