# SimTimerX vs Flip Clock

The clearest difference is in-app purchases: SimTimerX at none against Flip Clock's 1. SimTimerX also leads on update cadence (fortnightly vs monthly) and iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Flip Clock sells 1 one-off in-app purchase. SimTimerX asks for nothing beyond the download.

SimTimerX ships an update fortnightly, Flip Clock monthly. The most recent releases landed on September 26, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | SimTimerX | Flip Clock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Size | 30 MB | 3 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [Wu Bin](https://appshunter.io/developer/625703424) | [磊 刘](https://appshunter.io/developer/1892400556) |

## What reviewers say

### SimTimerX

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Flip Clock

[App page](https://appshunter.io/ios/app/flip-clock-timer-and-focus/id6767742797)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SimpleClock Pro Edition | $2.99 | one-time |


## Frequently asked questions

### Is SimTimerX free?

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

### Is Flip Clock free?

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

### Do SimTimerX or Flip Clock have ads?

Neither SimTimerX nor Flip Clock shows ads.

### Which is updated more often, SimTimerX or Flip Clock?

SimTimerX ships an update fortnightly, and Flip Clock monthly. Most recently, SimTimerX was updated on September 26, 2026 and Flip Clock on September 30, 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.*