Pignus

Pignus

Easy PGP Encryption

31 ratings
19 reviews

Archived App (Last seen on 29 Jan 2025)

This is an archived listing of the app previously available on the App Store.

Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.

Details

  • Released
  • Updated
  • February 21, 2018
  • October 17, 2020
Pignus video #1 for iPhone
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Pignus screenshot #8 for iPhone
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About

Securely encrypt and decrypt messages and documents using PGP. Easily share profiles with contacts and import existing PGP keys. Protect your communications with advanced encryption features.

Encrypt and decrypt messages and documents
Share extension for cross-app encryption
Action extension for in-app decryption
Create and share PGP profiles
Import existing PGP keys
Unlock with Face-ID/Touch-ID
Profile backup and online directory upload
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What's New in Pignus

1.5.2

October 17, 2020

Share your Profile with your Contacts using the new Profile widget on your Home Screen or Today View

User reviews

Can’t import PGP keys?

I can’t seem to import any pgp keys. Forces me to use a profile instead of my pgp keys.

doesn’t work

crashes on startup, did work for week or so then nothing.

Request the support of elliptic curve ciphers

Seems like this app doesn’t support modern OpenPGP ciphers like Ed25519 or any other elliptic curves.
When I try to import the key with Ed25519 and NIST P-521, the app crashed with no error message.

I wish i could give a true review

I’ve tried to email developer. Post master returns my email. I can’t find any other way to get in touch

Id love to give something here but so far it’ll crash and tkme I attempt to encrypt or any function

Has potential, but not for people already with private keys

I think this app has potential, but it has a number of flaws that makes it unusable for my personal use.

Pros:
- The user interface is lovely. It feels modern and is pretty to look at, which is something I can’t say about many other similar apps.
- The key creation works well. It makes it easy to share the public key with the openpgp key server and provides a QR code for the fingerprint of the key.
- One can also export their public key to a file and import it elsewhere (such as through GnuPG)
- The Share Extension makes it very easy to decrypt messages: you can highlight the encrypted text, then share it to the Pignus, where it will decrypt and display the message.

Cons:
- I did not manage to import any of my own private keys. I tested this with both RSA 3072 and ED25519 keys and the application immediately crashed. This issue alone makes the application useless to people that already use PGP.
- I couldn’t import my public key from the keyserver, or as a file.
- There isn’t an ability to sign messages - you can only encrypt.
- I couldn’t find a way to revoke my key. This is very important for security and is absolutely needed.
- No obvious way to change keyserver.
- There are also no options to change the type of key, or how it’s generated. You can only use RSA3072. The generated keys also don’t expire, which maybe be for simplicity, but is a security risk.

In summary, whilst the application looks nice, it lacks basic functionality that means people already invested in PGP won’t be able to use the application. I’m hoping that some of these issues will be addressed as the app is one of the only ones of its type with a nice user interface!
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Developer apps

FAQ

How do I encrypt messages with Pignus?

You can encrypt messages directly within Pignus or use its Share Extension to encrypt content from any app. Ensure you have the recipient's Pignus profile (public key) to encrypt for them.

Can Pignus import my existing PGP keys?

Yes, Pignus allows you to import existing private or public PGP keys. You can import them from various sources including AirDrop, files, clipboard, or key servers.

What is the price of Pignus?

Pignus is a paid application, available for a one-time purchase of $3.99. There are no in-app purchases or subscriptions.

What devices does Pignus support?

Pignus is compatible with iPhone, iPad, and iPod touch devices. It requires iOS 4+ and is optimized for the latest devices.

How often is Pignus updated?

The latest version of Pignus is 1.5.2, released on October 17, 2020. While updates are not frequent, the app is stable and functional for its core purpose.

What is the age rating for Pignus?

Pignus has an age rating of 4+, indicating it is suitable for users of all ages. The app's functionality is focused on technical encryption.

Does Pignus support symmetric encryption?

No, Pignus does not support symmetric encryption. It is designed to work with asymmetric PGP encryption methods using public and private key pairs.

How can I get help or provide feedback for Pignus?

You can contact the developers directly at pignus@frobese.de with any questions or suggestions. You can also try the latest beta version via TestFlight.