# Atom Messenger vs OffGrid

The clearest difference is iOS requirement: Atom Messenger at 16.0 against OffGrid's 18.0. 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.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 21, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Atom Messenger | OffGrid |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/offgrid-secure-messenger/id6749494514/reviews)** |
| Number of ratings | — | **5** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | — | Free |
| Size | 42 MB | 52 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [igloocy s.r.l.](https://appshunter.io/developer/1691843040) | [Vetra Labs Inc.](https://appshunter.io/developer/1830765451) |

## What reviewers say

### Atom Messenger

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

**In-app purchases:** none


### OffGrid

[App page](https://appshunter.io/ios/app/offgrid-secure-messenger/id6749494514)

Communicate privately with end-to-end encrypted messaging. This app collects no user data, requires no personal information for signup, and prevents screenshots. A killswitch feature erases all conversations.

**Highlights:** End-to-end encryption, No data collection, No ads or trackers, No screenshots, Killswitch feature, No personal info required

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Atom Messenger free?

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

### Is OffGrid free?

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

### Do Atom Messenger or OffGrid have ads?

Neither Atom Messenger nor OffGrid shows ads.

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

Atom Messenger ships an update every 3 weeks, and OffGrid every 3 weeks. Most recently, Atom Messenger was updated on September 21, 2026 and OffGrid on October 9, 2026.

---

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