Version: 4.1 (41010)
Package: org.sufficientlysecure.keychain
8.44 MB (8,845,705 bytes)
Min: Android 4.0.3 (Ice Cream Sandwich MR1, API 15)
Target: Android 6.0 (Marshmallow, API 23)
Uploaded August 8, 2016 at 8:48PM UTC by HoldTheDoor
Download APK

Whoa there!

It looks like you're using an ad blocker, so you'll have to wait 15 more seconds.
Please whitelist this site to skip the wait and help us pay for bandwidth, hosting, and other bills.

* Better detection of emails and other content when opened
* Experimental support for Security Tokens over USB
* Allow password changing of stripped keys
* Detection and handling of text data
* Performance improvements
* UI improvements for Security Token handling
* Add option to donate (requires in-app purchase permission)
* Redesigned key editing
* Choose remember time individually when entering passwords
OpenKeychain helps you communicate more privately and securely. It uses high-quality modern encryption to ensure that your messages can be read only by the people you send them to, others can send you messages that only you can read, and these messages can be digitally signed so the people getting them are sure who sent them. OpenKeychain is based on the well established OpenPGP standard (also referred to as PGP, GPG, or GnuPG) making encryption compatible across your devices and operating systems.

Modern encryption is based on digital “keys”. OpenKeychain stores and manages your keys, and those of the people you communicate with, on your Android. It also helps you find others’ keys online, and interchange keys by touching devices. But its most frequent use is in using those keys to encrypt and decrypt messages.

★ Integration with other Apps:
• K-9 Mail
• Conversations
• and many more…

★ Open Source: OpenKeychain is designed to be trustworthy. It’s Free Software with no secrets; anyone can examine and validate every bit of it (Source code available at

★ Independent Security Audit: The auditing company Cure53 performed an intensive security audit of OpenKeychain. The security experts summarize their final result with "[...] none of the spotted issues were considered to be of a critical severity in terms of security implications. The latter is a significant and impressive result for an app of this complexity and relevance."

★ Permissions: Because OpenKeychain is Free Software, anyone can validate that the permissions are indeed only required for the listed features.
• In-app purchases: Donate to the developers
• Identity: Pre-fill name and email addresses
• Contacts: Connect keys to your contacts (only offline)
• Photos/Media/Files: Import/export keys from SD card
• Camera: Scan QR Codes to add other people's keys
• Others: Internet permission to retrieve keys, NFC permission to use YubiKeys

Starting with Android 6, permissions are requested when required in-app!
All versions