OpenKeychain: Easy PGP

4.1
4.12K reviews
500K+
Downloads
Content rating
Everyone
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About this app

OpenKeychain helps you communicate more privately and securely. It uses 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 making encryption compatible across your devices and systems. For a list of compatible software for Windows, Mac OS, and other operating systems consult http://openpgp.org/software/.

Modern encryption is based on digital “keys”. OpenKeychain stores and manages your keys, and those of the people you communicate with, on your Android smartphone. It also helps you find others’ keys online, and exchange keys. 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 https://github.com/open-keychain/open-keychain)

★ 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!
Updated on
Mar 1, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Personal info
This app may collect these data types
Personal info
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.1
3.85K reviews
J T
October 2, 2020
Honestly, there is no reason why people should be giving this app such low ratings. If you want to import a key from clipboard - keys -> + button (bottom right) -> import from file -> 3 dots top right hand corner -> read from clipboard. Done. Oh and to encrypt a message using a key ... Go to the key and click on the little text box. Top right is copy. This app is very easy to use and one of the best free ones I've found. No issues or complaints. I even transferred my keys between phones.
138 people found this review helpful
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Reichard Könige
September 29, 2023
Works very well for most things. Yes, the UI/UX is rough, but it's not a big issue. The only issues I've had are importing from keyserver.ubuntuDOTcom (just doesn't work to search), and there seems to be no way to verify a signed file (ie obtanium.apk obtanium.sig). It works flawlessly with yubikey and K9 Mail. If there were other contenders I'd give it 4stars but it's the only app I could find for pgp and it worked well from the get-go.
15 people found this review helpful
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Rawr MFrawr
August 21, 2022
Great service offered here. In conjunction with the other apps I use, this app is very intuitive. My only problem is that secure key transfer via WiFi no longer works. I understand this is not necessarily an issue with development but if this feature could be reimplemented somehow this app would be the perfect package once again.
15 people found this review helpful
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What's new

* Updates for Android 14
* Support NitroKey 3
* ECC 25519 is now the default generated key type
* Various bug fixes