# Qubit Messenger — quantum safe messaging

> quantum safe messaging (iPhone/iPad app by QComply AG.)

- Source: https://appshunter.io/ios/app/qubit-messenger/id6769332669 (this page in markdown: same URL + `.md`)
- Developer: [QComply AG](https://appshunter.io/developer/1896650600)
- Category: News
- Price: Free
- Age rating: 17+
- Requires: iOS 17.6 · 4 MB
- Languages: American English
- Released: 2026-06-15
- Data updated: 2026-08-11
- User reviews in markdown: https://appshunter.io/ios/app/qubit-messenger/id6769332669/reviews.md

## What is Qubit Messenger?

Qubit is a minimalist post-quantum messenger. Unlike most messengers, Qubit uses only symmetric cryptography — no RSA, no Diffie-Hellman, no elliptic curves. None of the schemes that quantum computers threaten.

How it works:
• Meet your contact in person. Agree on a shared key.
• Enter that key on both phones once. It never leaves the device.
• Every message is encrypted with AES-256-GCM on your iPhone before it leaves. The server only stores ciphertext.

What we don't do:
• No phone number, email, or address book required.
• No group chats, no attachments, no reactions. By design.
Open the channel only with someone you've actually met. That's the entire trust model. Simple. Auditable. Future-proof.

Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/


## Version history (last 5 releases)

### 2.2.1 — 2026-08-05

Higher limit for voice messages.

### 2.1 — 2026-08-05

Improved user experience.

### 1.4 — 2026-08-01

Voice messages

### 1.2 — 2026-07-05

Notifications, easier channel creation.

### 1.1 — 2026-06-15

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-11.*