# One Alarm vs AiLamp

The clearest difference is in-app purchases: AiLamp at none against One Alarm's 1. AiLamp also leads on iOS requirement (12.0 vs 15.0). One Alarm's advantage is update cadence (every 3 weeks vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. One Alarm sells 1 one-off in-app purchase. AiLamp asks for nothing beyond the download.

One Alarm ships an update every 3 weeks, AiLamp every 3 months. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | One Alarm | AiLamp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (20 ratings)](https://appshunter.io/ios/app/one-alarm/id420208602/reviews)** | — |
| Number of ratings | **20** | — |
| Positive reviews | 50.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 3 MB | 31 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CW&T](https://appshunter.io/developer/403622462) | [gaung xuan ran](https://appshunter.io/developer/1523438175) |

## What reviewers say

### One Alarm

[App page](https://appshunter.io/ios/app/one-alarm/id420208602)

A minimalist alarm clock designed for simplicity. Set alarms with a single tap by dragging the minute hand. A badge on the app icon shows a countdown to the alarm time.

**Highlights:** Minimalist interface, One-tap alarm setting, Drag minute hand to set time, AM/PM quick switch, Icon countdown badge

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| instant unlock | $0.99 | one-time |


### AiLamp

[App page](https://appshunter.io/ios/app/ailamp/id6747345671)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is One Alarm free?

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

### Is AiLamp free?

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

### Do One Alarm or AiLamp have ads?

Neither One Alarm nor AiLamp shows ads.

### Which is updated more often, One Alarm or AiLamp?

One Alarm ships an update every 3 weeks, and AiLamp every 3 months. Most recently, One Alarm was updated on October 29, 2026 and AiLamp on October 25, 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.*