# System Sound vs SimTimerX

The clearest difference is ads: SimTimerX at none against System Sound's shown. SimTimerX also leads on iOS requirement (13.0 vs 15.8.3). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

System Sound ships an update every 2 weeks, SimTimerX fortnightly. The most recent releases landed on September 15, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | System Sound | SimTimerX |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Size | 36 MB | 30 MB |
| Requires iOS | 15.8.3 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) | [Wu Bin](https://appshunter.io/developer/625703424) |

## What reviewers say

### System Sound

[App page](https://appshunter.io/ios/app/system-sound/id6504702118)

**Features:** macOS Compatibility

**In-app purchases:** none


### SimTimerX

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is System Sound free?

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

### Is SimTimerX free?

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

### Do System Sound or SimTimerX have ads?

System Sound shows ads; SimTimerX does not.

### Which is updated more often, System Sound or SimTimerX?

System Sound ships an update every 2 weeks, and SimTimerX fortnightly. Most recently, System Sound was updated on September 15, 2026 and SimTimerX on September 9, 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.*