# AtCoder Alarm vs CLOSET TUNE

The clearest difference is in-app purchases: AtCoder Alarm at none against CLOSET TUNE's 3. AtCoder Alarm also leads on update cadence (daily vs every 6 weeks) and iOS requirement (15.5 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. CLOSET TUNE sells 3 in-app purchases, starting at $2.99 per month. AtCoder Alarm asks for nothing beyond the download.

AtCoder Alarm ships an update daily, CLOSET TUNE every 6 weeks. The most recent releases landed on September 6, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | AtCoder Alarm | CLOSET TUNE |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 6 weeks |
| Monetization | Free | — |
| Size | 27 MB | 47 MB |
| Requires iOS | **15.5** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kiichi Ito](https://appshunter.io/developer/1505735244) | [Ryusei Okamoto](https://appshunter.io/developer/1775109038) |

## What reviewers say

### AtCoder Alarm

[App page](https://appshunter.io/ios/app/atcoder-alarm/id1671964226)

This alarm clock requires users to solve a simple programming problem to turn it off. Problems are randomly selected from past AtCoder "A" tasks. Ensure you wake up on time with this unique challenge.

**Highlights:** Solve programming problems to stop alarm, Random AtCoder "A" task selection, Ensures waking up, Requires AtCoder pre-registration

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

**In-app purchases:** none


### CLOSET TUNE

[App page](https://appshunter.io/ios/app/closet-tune/id6774187355)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro月額プラン | $2.99 | per month |
| Max月額プラン | $5.99 | per month |
| AI試着10回分チケット | $1.99 | one-time |


## Frequently asked questions

### Is AtCoder Alarm free?

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

### Is CLOSET TUNE free?

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

### Do AtCoder Alarm or CLOSET TUNE have ads?

Neither AtCoder Alarm nor CLOSET TUNE shows ads.

### Which is updated more often, AtCoder Alarm or CLOSET TUNE?

AtCoder Alarm ships an update daily, and CLOSET TUNE every 6 weeks. Most recently, AtCoder Alarm was updated on September 6, 2026 and CLOSET TUNE on September 7, 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.*