# KAERU vs Doot Messenger

The clearest difference is ads: Doot Messenger at none against KAERU's shown. Doot Messenger also leads on update cadence (every 3 days vs monthly) and monetization model (free vs ad-supported). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

KAERU ships an update monthly, Doot Messenger every 3 days. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | KAERU | Doot Messenger |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/doot-messenger/id1549446269/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | Ad-supported | **Free** |
| Size | 18 MB | 141 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Densuke Inc.](https://appshunter.io/developer/985950764) | [Dooth, Inc](https://appshunter.io/developer/1513882383) |

## What reviewers say

### KAERU

[App page](https://appshunter.io/ios/app/kaeru/id1068741053)

A private and secure chat app designed for two people. It allows for quick messaging with a single tap, eliminating the need for registration or authentication. Easily send important messages to your dearest person.

**Highlights:** Private and secure chat, One-tap message sending, No registration required, No SNS authentication, Designed for two people

**Features:** macOS Compatibility

**In-app purchases:** none


### Doot Messenger

[App page](https://appshunter.io/ios/app/doot-messenger/id1549446269)

This secure messaging app prioritizes user privacy with device-to-device encryption, ensuring communications are never stored or profiled. It offers features like secret chats, locked conversations, and hack-proof phone number registration for ultimate data protection.

**Highlights:** Device-to-device encryption, Secret chat with lock, Hack-proof phone number registration, No tracking or profiling, Media not visible in gallery, Data inaccessible if phone is lost

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

**In-app purchases:** none


## Frequently asked questions

### Is KAERU free?

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

### Is Doot Messenger free?

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

### Do KAERU or Doot Messenger have ads?

KAERU shows ads; Doot Messenger does not.

### Which is updated more often, KAERU or Doot Messenger?

KAERU ships an update monthly, and Doot Messenger every 3 days. Most recently, KAERU was updated on November 2, 2026 and Doot Messenger on November 3, 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.*