# nost — Private Encrypted Messenger

> Private Encrypted Messenger (iPhone/iPad app by SUNGDO PARK.)

- Source: https://appshunter.io/ios/app/nost/id6762975755 (this page in markdown: same URL + `.md`)
- Developer: [SUNGDO PARK](https://appshunter.io/developer/1895105339)
- Category: Social Networking
- Price: Free
- Age rating: 12+
- Requires: iOS 16.0 · 131 MB
- Languages: American English, Hindi, Indonesian, Japanese, Korean, Chinese (Simplified, China), European Spanish, Thai, Chinese (Traditional, Taiwan), Vietnamese
- Released: 2026-04-22
- Data updated: 2026-09-18
- User reviews in markdown: https://appshunter.io/ios/app/nost/id6762975755/reviews.md

## What is nost?

nost is a privacy-first communication app built for secure, simple, and reliable conversations.

Private messages and one-to-one voice calls are protected with end-to-end encryption (E2EE). Your conversations stay on your devices—not on our servers. Encrypted messages are temporarily stored only while awaiting delivery and are removed from the server after they have been delivered or read.

Key Features

• End-to-end encrypted one-to-one and group messaging
• Hybrid post-quantum encryption (PQC) for enhanced long-term security
• Secure end-to-end encrypted one-to-one voice calls
• Murmur, a public community for sharing short posts and connecting with people around the world
• On-device translation for Murmur posts and comments in supported languages
• Photos, videos, voice messages, files, stickers, reactions, replies, and message forwarding
• Sign in with Google, Sign in with Apple, or email
• nost Mode – automatically deletes messages within 5 minutes after they have been viewed

Privacy First

nost is designed to minimize the amount of personal data stored on servers. Your private conversations remain on your devices, while encrypted messages exist on our servers only temporarily for delivery before being removed.

Privacy is not just a feature—it’s the foundation of nost.

Your conversations belong only to you.


## Version history (last 5 releases)

### 2.0.2 — 2026-09-15

Performance improvements and bug fixes

### 2.0.0 — 2026-07-21

Welcome to nost 2.0.0 — our biggest update yet!

• Introducing Murmur, a new public space for sharing short posts and connecting with people around the world.
• Added secure end-to-end encrypted one-to-one voice calls.
• Enhanced security with hybrid post-quantum encryption (PQC).
• Added Google Sign-In and Sign in with Apple.
• Improved notifications, including richer iOS notification previews.
• Redesigned navigation and refined the overall user experience.
• Improved performance, stability, and reliability throughout the app.

Thank you for using nost!

### 1.5.0 — 2026-06-01

1.5.0 — Major security & stability update

• We rebuilt the app's internals for stronger security and stability.
• Your existing conversations will be reset once during this update.
  (Your login, friends, and profile are preserved.)
• Faster, more reliable messaging and stronger group security.

### 1.4.1 — 2026-05-28

• Improved group chat stability
• Improved display accuracy
• Other bug fixes

### 1.4.0 — 2026-05-26

Major update with stability and performance improvements.
• Improved message reliability
• More stable auto-delete messages
• Expanded language support (10 languages total)
• Redesigned language settings
• Visual polish
• Bug fixes and optimizations

## Apps similar to nost

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Vanio](https://appshunter.io/ios/app/vanio/id6759950286) | — | Free | Social Networking |
| [Seifr](https://appshunter.io/ios/app/seifr/id6758987591) | — | Free | Social Networking |
| [ieum: Private P2P Messenger](https://appshunter.io/ios/app/ieum-private-p2p-messenger/id6781143855) | — | Free | Social Networking |
| [Sogool - Secure Messenger](https://appshunter.io/ios/app/sogool-secure-messenger/id6768185122) | — | Free | Social Networking |
| [discreed – Private Chat](https://appshunter.io/ios/app/discreed-private-chat/id6757497574) | — | Free | Social Networking |
| [One to One Secret Chat](https://appshunter.io/ios/app/one-to-one-secret-chat/id6798763230) | — | Free | Social Networking |

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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 2026-09-18.*