Mobile app · Office & notes

CypherLeaf

Private, offline notes with folders, tags, and a lock for sensitive entries.

Completely free
Android
Open source

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Geographic availability: No geographic restriction found in our sources; availability is not checked country by country.

Technical details

Pricing: Completely freeconfirmed by F-Droid
License: MIT — Open source (permissive)confirmed by F-Droid
Open source: Yes
Commercial use: Yesconfirmed by F-Droid
Account required: not documented
Credit card required: Noconfirmed by F-Droid
Watermark: Not applicable
Ads: No
Platforms: AndroidEstablished by Android: F-Droid
Distribution: Available on F-Droid
Publisher: Zak Faulkner
Latest version: 1.2.0 (6 November 2026)
Latest activity: 6 November 2026
Source code: gitlab.com/Jrock-902/smart_notes

Overview

CypherLeaf is a note-taking mobile app, available on Android.

Features described in its F-Droid listing: offline use.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information

“Private, offline notes with folders, tags, and a lock for sensitive entries.” — F-Droid, 10 November 2026
“It works fully offline, has no ads, no trackers, and no account.” — F-Droid, 10 November 2026
“Protected notes: individual notes and their attachments are encrypted with” — F-Droid, 10 November 2026
“Reminders with notifications” — F-Droid, 10 November 2026
“Export notes as plain text, Markdown, or JSON” — F-Droid, 10 November 2026
“Light and dark themes, with an adjustable font size” — F-Droid, 10 November 2026

At a glance

CypherLeaf is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (MIT) is a permissive open source licence: use, modification and redistribution are allowed, including in commercial projects.

Strengths

Open source code
No advertising
Commercial use allowed

Sources and checks

Facts collected from F-Droid (credit card, source code, publisher, licence, free status, platforms, ads, commercial use, version) — 6 November 2026
Last technical check: 6 November 2026
Description from F-Droid — F-Droid (citation courte)

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