# Atom Messenger vs Krysp

The clearest difference is device support: Krysp at 3 against Atom Messenger's 1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Atom Messenger ships an update every 3 weeks, Krysp fortnightly. The most recent releases landed on October 27, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Atom Messenger | Krysp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.2 (5 ratings)](https://appshunter.io/ios/app/krysp-public-chat-and-messaging/id6478176881/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 80.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | — | Free |
| Size | 42 MB | 72 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [igloocy s.r.l.](https://appshunter.io/developer/1691843040) | [ABOUAB RAQMIYAH FOR INFORMATION TECHNOLOGY ESTABLISHMENT](https://appshunter.io/developer/1689852836) |

## What reviewers say

### Atom Messenger

[App page](https://appshunter.io/ios/app/atom-messenger/id6450101210)

**In-app purchases:** none


### Krysp

[App page](https://appshunter.io/ios/app/krysp-public-chat-and-messaging/id6478176881)

Connect, chat, and build communities with a focus on speed and privacy. Discover public chatrooms by topic, host private conversations, and enjoy a clean, distraction-free interface. Offers end-to-end encrypted private chats and optional anonymous profiles.

**Highlights:** Public chatrooms by topic, Private groups and 1-on-1 messaging, Instant message delivery, End-to-end encrypted private chats, Optional anonymous profiles, Modern, minimal UI, Mentions, emojis, and replies

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Atom Messenger free?

Atom Messenger is free to download, with no in-app purchases.

### Is Krysp free?

Krysp is free to download, with no in-app purchases.

### Do Atom Messenger or Krysp have ads?

Neither Atom Messenger nor Krysp shows ads.

### Which is updated more often, Atom Messenger or Krysp?

Atom Messenger ships an update every 3 weeks, and Krysp fortnightly. Most recently, Atom Messenger was updated on October 27, 2026 and Krysp on November 4, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*