Kriptis
sas Optimus Productivity
Private notebook. Nothing leaves your phone. No account required, free.
- Downloads
- 11+
- on Google Play
- Price
- Free
- No in-app purchases
- Updated
- Sep 20
- 2026 · v1.10.1
Screenshots
About Kriptis
Kriptis is a private notebook. Your texts, photos, videos, and voice memos stay on your phone and never leave it.
PRIVACY IS NOT AN OPTION
No account creation required. No servers. No synchronization. There is no Kriptis database anywhere on the internet: everything is written, encrypted, in your phone's memory.
• Your notes and attachments are protected on the device
• No ads, no trackers, no usage statistics
• Data is excluded from iCloud and Google backups
• No data is transmitted to anyone
LOCKED, EVEN IN YOUR HANDS
• Unlock with Face ID, Touch ID, fingerprint, or passcode
• Automatically locks after a period of inactivity you choose
• Lock folders and notes individually
• Hidden preview in the app switcher
A REAL NOTEBOOK, NOT A NOTEPAD
• Nested folders, as deep as needed
• Formatted text, photos, videos, and voice memos within the note
• Document scanning and text recognition
• Newsstand: Save a web page from the share menu
• Instant search by title
• Pin important items
• Recycle bin with restore function
• PDF export of all your notes
• Light and dark themes, depending on your phone's settings
• Fully French
FREE
Kriptis is free, ad-free, and has no in-app purchases.
THINGS TO KNOW BEFORE YOU START
Since nothing is copied to a server or your backups, losing or resetting your phone will permanently delete your notes. Exporting to PDF allows you to keep a copy wherever you want. This is the trade-off for an app that doesn't store anything locally.
PRIVACY IS NOT AN OPTION
No account creation required. No servers. No synchronization. There is no Kriptis database anywhere on the internet: everything is written, encrypted, in your phone's memory.
• Your notes and attachments are protected on the device
• No ads, no trackers, no usage statistics
• Data is excluded from iCloud and Google backups
• No data is transmitted to anyone
LOCKED, EVEN IN YOUR HANDS
• Unlock with Face ID, Touch ID, fingerprint, or passcode
• Automatically locks after a period of inactivity you choose
• Lock folders and notes individually
• Hidden preview in the app switcher
A REAL NOTEBOOK, NOT A NOTEPAD
• Nested folders, as deep as needed
• Formatted text, photos, videos, and voice memos within the note
• Document scanning and text recognition
• Newsstand: Save a web page from the share menu
• Instant search by title
• Pin important items
• Recycle bin with restore function
• PDF export of all your notes
• Light and dark themes, depending on your phone's settings
• Fully French
FREE
Kriptis is free, ad-free, and has no in-app purchases.
THINGS TO KNOW BEFORE YOU START
Since nothing is copied to a server or your backups, losing or resetting your phone will permanently delete your notes. Exporting to PDF allows you to keep a copy wherever you want. This is the trade-off for an app that doesn't store anything locally.
What’s new
Version 1.10.1 · Updated September 20, 2026
Vos données sont désormais mieux protégées sur l'appareil : notes, photos, vidéos et mémos vocaux enregistrés sous une forme illisible, et exclus des sauvegardes. Aperçu masqué dans le sélecteur d'applications. Export PDF corrigé (accents, documents longs). Vos notes existantes sont converties automatiquement au premier lancement.