# Proofn vs Atom Messenger

The clearest difference is iOS requirement: Atom Messenger at 16.0 against Proofn's 26.0. 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.

Proofn ships an update every 4 weeks, Atom Messenger every 3 weeks. The most recent releases landed on June 20, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | Proofn | Atom Messenger |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/proofn/id1551267874/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 35 MB | 42 MB |
| Requires iOS | 26.0 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Myabuy, LLC](https://appshunter.io/developer/1346618603) | [igloocy s.r.l.](https://appshunter.io/developer/1691843040) |

## What reviewers say

### Proofn

[App page](https://appshunter.io/ios/app/proofn/id1551267874)

This app allows users to edit or delete unread emails and group messages, even after sending. It also supports inline video, photo, and voice note attachments, offering enhanced privacy and control over communications.

**Highlights:** Edit unread emails and attachments, Delete unread messages, Inline video, photo, and voice note attachments, Private group messaging, End-to-end and zero-access encryption, Organize messages by sender or group

**In-app purchases:** none


### Atom Messenger

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

**In-app purchases:** none


## Frequently asked questions

### Is Proofn free?

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

### Is Atom Messenger free?

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

### Do Proofn or Atom Messenger have ads?

Neither Proofn nor Atom Messenger shows ads.

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

Proofn ships an update every 4 weeks, and Atom Messenger every 3 weeks. Most recently, Proofn was updated on June 20, 2026 and Atom Messenger on September 6, 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.*