# Vibe Alarm vs Oto Diary

The clearest difference is ads: Oto Diary at none against Vibe Alarm's shown. Vibe Alarm's advantage is update cadence (every 4 days vs every 6 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Vibe Alarm sells 1 one-off in-app purchase and Oto Diary sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Vibe Alarm ships an update every 4 days, Oto Diary every 6 weeks. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Vibe Alarm | Oto Diary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Every 6 weeks |
| Size | 9 MB | 2 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kosuke Shimada](https://appshunter.io/developer/1529796493) | [torankirite](https://appshunter.io/developer/1883564850) |

## What reviewers say

### Vibe Alarm

[App page](https://appshunter.io/ios/app/vibe-alarm-silent-timer/id6748874420)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | 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 Vibe Alarm free?

Vibe Alarm 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 Vibe Alarm or Oto Diary have ads?

Vibe Alarm shows ads; Oto Diary does not.

### Which is updated more often, Vibe Alarm or Oto Diary?

Vibe Alarm ships an update every 4 days, and Oto Diary every 6 weeks. Most recently, Vibe Alarm was updated on October 28, 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.*