# ClockLesson vs Clock Twirling

The clearest difference is ads: ClockLesson at none against Clock Twirling's shown. ClockLesson also leads on iOS requirement (15.0 vs 18.6). Clock Twirling's advantage is update cadence (weekly vs every 5 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. ClockLesson sells 1 one-off in-app purchase and Clock Twirling sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ClockLesson ships an update every 5 months, Clock Twirling weekly. The most recent releases landed on September 19, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | ClockLesson | Clock Twirling |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Weekly** |
| Size | 83 MB | 4 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [HappyCode Lab](https://appshunter.io/developer/6793409707) | [zhenhua qin](https://appshunter.io/developer/457243793) |

## What reviewers say

### ClockLesson

[App page](https://appshunter.io/ios/app/clocklesson-learn-by-touch/id1640611945)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock all quiz stages. | $2.99 | one-time |


### Clock Twirling

[App page](https://appshunter.io/ios/app/clock-twirling/id6760804276)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $0.99 | one-time |


## Frequently asked questions

### Is ClockLesson free?

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

### Is Clock Twirling free?

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

### Do ClockLesson or Clock Twirling have ads?

Clock Twirling shows ads; ClockLesson does not.

### Which is updated more often, ClockLesson or Clock Twirling?

ClockLesson ships an update every 5 months, and Clock Twirling weekly. Most recently, ClockLesson was updated on September 19, 2026 and Clock Twirling on September 12, 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.*