# Duo Messenger vs CheckMate

The clearest difference is iOS requirement: CheckMate at 13 against Duo Messenger's 15.0. 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.

Duo Messenger ships an update every 9 days, CheckMate every 3 weeks. The most recent releases landed on October 15, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Duo Messenger | CheckMate |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/duo-messenger/id6503286911/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | Free | — |
| Size | 44 MB | 116 MB |
| Requires iOS | 15.0 | **13** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [JUSI PTE.LTD.](https://appshunter.io/developer/1659814629) | [Chengdu Kamang Network Technology Co., LTD](https://appshunter.io/developer/1823225877) |

## What reviewers say

### Duo Messenger

[App page](https://appshunter.io/ios/app/duo-messenger/id6503286911)

This secure messaging app prioritizes your privacy with end-to-end encryption and anonymous communication. It offers a clean, ad-free experience, allowing you to chat without revealing personal contact information.

**Highlights:** End-to-end message encryption, Anonymous communication via Duo Numbers, No ads or trackers, Private contact information, Secure data safeguarding

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

**In-app purchases:** none


### CheckMate

[App page](https://appshunter.io/ios/app/checkmate/id6747891089)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Duo Messenger free?

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

### Is CheckMate free?

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

### Do Duo Messenger or CheckMate have ads?

Neither Duo Messenger nor CheckMate shows ads.

### Which is updated more often, Duo Messenger or CheckMate?

Duo Messenger ships an update every 9 days, and CheckMate every 3 weeks. Most recently, Duo Messenger was updated on October 15, 2026 and CheckMate on October 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.*