# Nap Buddy Timer vs 新AI脳トレ

The clearest difference is ads: 新AI脳トレ at none against Nap Buddy Timer's shown. 新AI脳トレ also leads on iOS requirement (13.0 vs 15.0). Nap Buddy Timer's advantage is update cadence (every 4 days vs every 3 weeks). On price, in-app purchases and device support there is nothing between them.

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

Nap Buddy Timer ships an update every 4 days, 新AI脳トレ every 3 weeks. The most recent releases landed on October 20, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Nap Buddy Timer | 新AI脳トレ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Monetization | Ad-supported | — |
| Size | 24 MB | 30 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [iida atsushi](https://appshunter.io/developer/1872403865) | [Yusuke Sano](https://appshunter.io/developer/1846508462) |

## What reviewers say

### Nap Buddy Timer

[App page](https://appshunter.io/ios/app/nap-buddy-timer/id6758344138)

This app helps you take better naps with customizable timers and soothing background music. Unlock cute animal companions by watching ads. Enjoy relaxing sounds like forest, river, ocean, rain, and jazz.

**Highlights:** Customizable nap timer, Soothing background music options, Cute animal character companions, Background playback, Earphone compatible alarm, 26-minute power nap preset

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

**In-app purchases:** none


### 新AI脳トレ

[App page](https://appshunter.io/ios/app/ai/id6759478870)

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

**In-app purchases:** none


## Frequently asked questions

### Is Nap Buddy Timer free?

Nap Buddy Timer is free to download, with no in-app purchases.

### Is 新AI脳トレ free?

新AI脳トレ is free to download, with no in-app purchases.

### Do Nap Buddy Timer or 新AI脳トレ have ads?

Nap Buddy Timer shows ads; 新AI脳トレ does not.

### Which is updated more often, Nap Buddy Timer or 新AI脳トレ?

Nap Buddy Timer ships an update every 4 days, and 新AI脳トレ every 3 weeks. Most recently, Nap Buddy Timer was updated on October 20, 2026 and 新AI脳トレ on September 29, 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.*