# SimTimerX vs Horror AlarmClock

The clearest difference is in-app purchases: SimTimerX at none against Horror AlarmClock's 3. SimTimerX also leads on ads (none vs shown) and iOS requirement (13.0 vs 26.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Horror AlarmClock sells 3 in-app purchases, starting at $2.99 per 7 days. SimTimerX asks for nothing beyond the download.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 12, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | SimTimerX | Horror AlarmClock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | Fortnightly |
| Size | 30 MB | 426 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 17+ |
| Developer | [Wu Bin](https://appshunter.io/developer/625703424) | [Davor Repec](https://appshunter.io/developer/1734487792) |

## What reviewers say

### SimTimerX

[App page](https://appshunter.io/ios/app/simtimerx/id6753038970)

**Features:** macOS Compatibility

**In-app purchases:** none


### Horror AlarmClock

[App page](https://appshunter.io/ios/app/horror-alarmclock/id6755826134)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly subscription | $2.99 | per 7 days |
| Monthly subscription | $9.99 | per month |
| Yearly subscription | $24.99 | per year |


## Frequently asked questions

### Is SimTimerX free?

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

### Is Horror AlarmClock free?

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

### Do SimTimerX or Horror AlarmClock have ads?

Horror AlarmClock shows ads; SimTimerX does not.

### Which is updated more often, SimTimerX or Horror AlarmClock?

SimTimerX ships an update fortnightly, and Horror AlarmClock fortnightly. Most recently, SimTimerX was updated on October 12, 2026 and Horror AlarmClock on October 10, 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.*