# Clock vs OpenAlarm

The clearest difference is in-app purchases: OpenAlarm at none against Clock's 2. OpenAlarm also leads on ads (none vs shown) and update cadence (every 8 days vs every 2 months). Clock's advantage is rating (3.4 vs 3.0) and device support (3 vs 1). On price and ratings volume there is nothing between them.

Both are free to download. Clock sells 2 in-app purchases, starting at $1.99 per month. OpenAlarm asks for nothing beyond the download.

Clock holds the better App Store score, 3.4 against 3.0. Both are backed by a comparable volume of ratings — 7 and 10 respectively.

Clock ships an update every 2 months, OpenAlarm every 8 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Clock | OpenAlarm |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (7 ratings)](https://appshunter.io/ios/app/clock-alarm-clock/id6759249981/reviews)** | [3.0 (10 ratings)](https://appshunter.io/ios/app/openalarm/id6759548698/reviews) |
| Number of ratings | 7 | **10** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 8 days** |
| Monetization | Free with in-app purchases | — |
| Size | 39 MB | 104 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Bhaskar Rao](https://appshunter.io/developer/1862718308) | [Daniel Gretzke](https://appshunter.io/developer/1879448130) |

## What reviewers say

### Clock

[App page](https://appshunter.io/ios/app/clock-alarm-clock/id6759249981)

Manage your time effectively with customizable alarms, world clock, stopwatch, and countdown timer. Wake up on time, track activities, and stay connected across time zones with this easy-to-use utility.

**Highlights:** Customizable alarms, World time zones, Stopwatch with laps, Countdown timer, Repeat alarms on selected days, Adjustable snooze duration

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Yearly | $9.99 | per year |


### OpenAlarm

[App page](https://appshunter.io/ios/app/openalarm/id6759548698)

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

**In-app purchases:** none


## Frequently asked questions

### Is Clock free?

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

### Is OpenAlarm free?

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

### Which has better reviews, Clock or OpenAlarm?

Clock is rated higher. Clock averages 3.4 out of 5 from 7 ratings, while OpenAlarm averages 3.0 from 10 ratings.

### Do Clock or OpenAlarm have ads?

Clock shows ads; OpenAlarm does not.

### Which is updated more often, Clock or OpenAlarm?

Clock ships an update every 2 months, and OpenAlarm every 8 days. Most recently, Clock was updated on October 24, 2026 and OpenAlarm on October 24, 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.*