Is Kryfo safe?

A private messenger. No phone number, no email, no account. You are a key pair generated on your device. On the default route, nobody, including us, can tie your chats to a real identity, and no one can look you up unless you claim a public handle. By default everything travels over Tor. Content is end to end encrypted with the Signal protocol. Messages travel through relays, sealed so no relay c…

Developer: GnosiWorks
Category: Messaging
Earliest archived version: 06 Oct 2026
License: GPL-3.0-or-later (per F-Droid metadata)

02 / Release notes

Release notes from F-Droid

18 Oct 2026

0.5.1

Please update to 0.5.1: it contains security fixes. We will publish the details in about a week. New: bridges that step in when Tor is blocked, a clearer voice disguise per chat, a key number to check on pair codes, sharing from other apps, and private GIF search. Fixed: lost first messages to…

Full notes →

12 Oct 2026

0.5.0

New: a decoy pin that opens an empty Kryfo, hidden chats behind a pin of their own, animated stickers, and a chat with Marios, who builds Kryfo, anonymous if you like. Timed messages you receive start counting down when read, or a day after they arrive if still unread. Delivery is steadier after…

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06 Oct 2026

0.4.2

More reliable message delivery when a relay sends unexpected data. More careful handling of contacts and groups.

Full notes →

03 / Package identity

Technical fingerprint

Application IDapp.kryfo

Latest APK SHA-25676af71b870f9765a97620c69c14637bdf3213c096c143e35d4574172017da45d

Signing certificate10:92:8A:61:64:2C:5C:C4:71:A9:98:69:E2:EA:4E:2D:4D:70:02:6E:79:7D:FB:A4:8C:0F:30:6B:5B:34:73:DB

MIN ANDROID24TARGET36ARCHITECTUREx86_64

04 / History

Archive history

3 versions in WIKI archive: earliest 0.4.2 (06 Oct 2026), latest 0.5.1 (18 Oct 2026).

No change in android.permission.* between 0.5.0 and 0.5.1.

05 / Version archive

Documented releases

3 TOTAL

VersionReleasedAndroidArchitecture

0.5.118 Oct 202624+x86_64→0.5.012 Oct 202624+x86_64→0.4.206 Oct 202624+x86_64→

06 / Safety & access

Safety verdict

Authentic — file hash matches the source indexNo ads or tracking flagged by the source

IntegritySHA-256 verified vs source

SourceOpen-source · fdroid

Permissions13 declared · 2 sensitive

Signaturepresent

Anti-featuresNo known anti-features

Sensitive accessCAMERARECORD_AUDIO

Declared permissions

android.permission.ACCESS_NETWORK_STATE android.permission.CAMERA android.permission.FOREGROUND_SERVICE android.permission.FOREGROUND_SERVICE_SPECIAL_USE android.permission.INTERNET android.permission.POST_NOTIFICATIONS android.permission.RECEIVE_BOOT_COMPLETED android.permission.RECORD_AUDIO android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS android.permission.USE_BIOMETRIC android.permission.USE_FINGERPRINT android.permission.VIBRATE app.kryfo.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

Tracker status: Not assessed by WIKI for Android.

07 / Sources

Evidence ledger

Each entry is a captured public reference backing this record.

RepositorySource package page↗Source codeSource repository↗