# One Alarm vs Smart lab APP Tracking

The clearest difference is in-app purchases: Smart lab APP Tracking at none against One Alarm's 1. Smart lab APP Tracking also leads on iOS requirement (10.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

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

One Alarm ships an update every 3 weeks, Smart lab APP Tracking every 5 weeks. The most recent releases landed on October 23, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | One Alarm | Smart lab APP Tracking |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (19 ratings)](https://appshunter.io/ios/app/one-alarm/id420208602/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 50.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 3 MB | 8 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CW&T](https://appshunter.io/developer/403622462) | [GMT SOLUTION CONSULTANT COMPANY LIMITED](https://appshunter.io/developer/1506744156) |

## 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 |


### Smart lab APP Tracking

[App page](https://appshunter.io/ios/app/smart-lab-app-tracking/id1506961499)

**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 Smart lab APP Tracking free?

Smart lab APP Tracking is free to download, with no in-app purchases.

### Do One Alarm or Smart lab APP Tracking have ads?

Neither One Alarm nor Smart lab APP Tracking shows ads.

### Which is updated more often, One Alarm or Smart lab APP Tracking?

One Alarm ships an update every 3 weeks, and Smart lab APP Tracking every 5 weeks. Most recently, One Alarm was updated on October 23, 2026 and Smart lab APP Tracking on October 19, 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.*