# Smart Clocks vs Clock Twirling

The clearest difference is in-app purchases: Smart Clocks at none against Clock Twirling's 1. Smart Clocks also leads on ads (none vs shown) and iOS requirement (12.0 vs 18.6). Clock Twirling's advantage is update cadence (weekly vs every 4 weeks). On price and device support there is nothing between them.

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

Smart Clocks ships an update every 4 weeks, Clock Twirling weekly. The most recent releases landed on September 19, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Smart Clocks | Clock Twirling |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/smart-clocks/id6608968019/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 weeks | **Weekly** |
| Monetization | Free | — |
| Size | 86 MB | 4 MB |
| Requires iOS | **12.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yan Xu](https://appshunter.io/developer/1503643654) | [zhenhua qin](https://appshunter.io/developer/457243793) |

## What reviewers say

### Smart Clocks

[App page](https://appshunter.io/ios/app/smart-clocks/id6608968019)

This educational app helps children learn about clocks and time through interactive exercises. It features engaging activities for practicing time-telling, writing, and understanding time intervals with voice and text instructions.

**Highlights:** Observe time changes with interactive hands, Practice writing time from clock indications, Draw clock hands from digital displays, Calculate time before or after a given period, Determine time between two clock indications, Text and voice instructions for all modules, Animation demonstrations of clocks

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Smart Clocks free?

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

### Is Clock Twirling free?

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

### Do Smart Clocks or Clock Twirling have ads?

Clock Twirling shows ads; Smart Clocks does not.

### Which is updated more often, Smart Clocks or Clock Twirling?

Smart Clocks ships an update every 4 weeks, and Clock Twirling weekly. Most recently, Smart Clocks 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.*