# AtCoder Alarm vs Lofi Alarm Clock

The clearest difference is review sentiment: Lofi Alarm Clock at 80% against AtCoder Alarm's 0%. AtCoder Alarm's advantage is in-app purchases (none vs 2) and update cadence (daily vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Lofi Alarm Clock sells 2 in-app purchases, starting at $6.99 per month. AtCoder Alarm asks for nothing beyond the download.

AtCoder Alarm ships an update daily, Lofi Alarm Clock fortnightly. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | AtCoder Alarm | Lofi Alarm Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (13 ratings)](https://appshunter.io/ios/app/lofi-alarm-clock-wake-up/id6471688584/reviews)** |
| Number of ratings | — | **13** |
| Positive reviews | 0.0% of reviews | **80.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Fortnightly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 27 MB | 37 MB |
| Requires iOS | **15.5** | 16.2 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kiichi Ito](https://appshunter.io/developer/1505735244) | [Justin Barry](https://appshunter.io/developer/1189782940) |

## 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


### Lofi Alarm Clock

[App page](https://appshunter.io/ios/app/lofi-alarm-clock-wake-up/id6471688584)

Wake up gently with a vast library of soothing Lofi music. Customize your alarms with a shuffle feature and personalized playlists for a tranquil start to your day. This free app offers a user-friendly interface for a seamless morning experience.

**Highlights:** Expansive Lofi library, Shuffle alarm tracks, Personalized playlists, Customizable alarm settings, Mobile clock flexibility, User-friendly interface

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $6.99 | per month |
| Yearly Subscription | $59.99 | per year |


## Frequently asked questions

### Is AtCoder Alarm free?

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

### Is Lofi Alarm Clock free?

Lofi Alarm Clock is free to download, with in-app purchases available.

### Do AtCoder Alarm or Lofi Alarm Clock have ads?

Neither AtCoder Alarm nor Lofi Alarm Clock shows ads.

### Which is updated more often, AtCoder Alarm or Lofi Alarm Clock?

AtCoder Alarm ships an update daily, and Lofi Alarm Clock fortnightly. Most recently, AtCoder Alarm was updated on November 7, 2026 and Lofi Alarm Clock on November 4, 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.*