# Murmur vs Oto Diary

The clearest difference is ads: Oto Diary at none against Murmur's shown. Murmur's advantage is update cadence (weekly vs every 6 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Murmur sells 4 in-app purchases, starting at $2.99 per month and Oto Diary sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Murmur ships an update weekly, Oto Diary every 6 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Murmur | Oto Diary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (82 ratings)](https://appshunter.io/ios/app/murmur-voice-diary/id1510564828/reviews)** | — |
| Number of ratings | **82** | — |
| Positive reviews | 61.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 6 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 84 MB | 2 MB |
| Requires iOS | 16.4 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Junhyeok Heo](https://appshunter.io/developer/1510564827) | [torankirite](https://appshunter.io/developer/1883564850) |

## What reviewers say

### Murmur

[App page](https://appshunter.io/ios/app/murmur-voice-diary/id1510564828)

This app allows you to record your daily thoughts and feelings using your voice. An AI companion listens, transcribes your words, and provides a warm reply. It offers mood tracking, a daily question prompt, and a yearly recap of your entries.

**Highlights:** Voice recording and transcription, AI companion replies, Emotion analysis and mood tracking, Daily question prompts, Home screen widgets, Yearly recap, App lock and cloud backup

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription Pass | $2.99 | per month |
| Yearly Subscription Pass | $29.99 | per year |
| Server Synchronization | $0.99 | one-time |
| Remove Ads | $1.99 | one-time |


### Oto Diary

[App page](https://appshunter.io/ios/app/oto-diary/id6760734574)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sound Diary Premium | $3.99 | one-time |


## Frequently asked questions

### Is Murmur free?

Murmur is free to download, with in-app purchases available.

### Is Oto Diary free?

Oto Diary is free to download, with in-app purchases available.

### Do Murmur or Oto Diary have ads?

Murmur shows ads; Oto Diary does not.

### Which is updated more often, Murmur or Oto Diary?

Murmur ships an update weekly, and Oto Diary every 6 weeks. Most recently, Murmur was updated on November 3, 2026 and Oto Diary on October 31, 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.*