# AtCoder Alarm vs FRRM

The clearest difference is in-app purchases: AtCoder Alarm at none against FRRM's 30. AtCoder Alarm also leads on ads (none vs shown) and update cadence (daily vs fortnightly). On price and device support there is nothing between them.

Both are free to download. FRRM sells 30 one-off in-app purchases. AtCoder Alarm asks for nothing beyond the download.

AtCoder Alarm ships an update daily, FRRM fortnightly. The most recent releases landed on October 15, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | AtCoder Alarm | FRRM |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Fortnightly |
| Monetization | Free | — |
| Size | 27 MB | 164 MB |
| Requires iOS | **15.5** | 18.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kiichi Ito](https://appshunter.io/developer/1505735244) | [TaDah LLC](https://appshunter.io/developer/1792379331) |

## 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


### FRRM

[App page](https://appshunter.io/ios/app/frrm/id6740982685)

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

**In-app purchases (30)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ウェーブなロング_アクア | $0.49 | one-time |
| 切りっぱなしミディ_オレンジ | $0.49 | one-time |
| 切りっぱなしミディ_ブラック | $0.49 | one-time |
| 切りっぱなしミディ_ゴールド | $0.49 | one-time |
| ぱっつんショート_ブラック | $0.49 | one-time |
| ぱっつんショート_ゴールド | $0.49 | one-time |
| ぱっつんショート_グリーン | $0.49 | one-time |
| 三つ編みお団子_ブラック | $0.49 | one-time |
| 三つ編みお団子_ゴールド | $0.49 | one-time |
| 三つ編みお団子_グリーン | $0.49 | one-time |
| バスケのシューズ_レッド | $0.49 | one-time |
| バスケのシューズ_グリーン | $0.49 | one-time |
| バスケットボール_オレンジ | $0.49 | one-time |
| バスケット_ブラウン | $0.49 | one-time |
| ふわっとショート_ブラック | $0.49 | one-time |
| ふわっとショート_ゴールド | $0.49 | one-time |
| ふわっとショート_アクア | $0.49 | one-time |
| 三つ編みリングヘア_ブラック | $0.49 | one-time |
| 三つ編みリングヘア_ゴールド | $0.49 | one-time |
| 三つ編みリングヘア_アクア | $0.49 | one-time |
| 制服スカート_ベージュ | $0.49 | one-time |
| ボリュームスニーカー_グリーン | $0.49 | one-time |
| ビニール傘_イエロー | $0.49 | one-time |
| ビニール傘_グリーン | $0.49 | one-time |
| 制服ズボン_レッド | $0.49 | one-time |
| 制服スカート_グリーン | $0.49 | one-time |
| ボリュームスニーカー_ブラウン | $0.49 | one-time |
| ビニール傘_アクア | $0.49 | one-time |
| 制服スカート_レッド | $0.49 | one-time |
| ボリュームスニーカー_ベージュ | $0.49 | one-time |


## Frequently asked questions

### Is AtCoder Alarm free?

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

### Is FRRM free?

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

### Do AtCoder Alarm or FRRM have ads?

FRRM shows ads; AtCoder Alarm does not.

### Which is updated more often, AtCoder Alarm or FRRM?

AtCoder Alarm ships an update daily, and FRRM fortnightly. Most recently, AtCoder Alarm was updated on October 15, 2026 and FRRM on October 5, 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.*