# 一年级数学认时间 vs Clock Twirling

The clearest difference is in-app purchases: 一年级数学认时间 at none against Clock Twirling's 1. 一年级数学认时间 also leads on ads (none vs shown) and iOS requirement (10.0 vs 18.6). Clock Twirling's advantage is update cadence (weekly vs every 10 months). On price and device support there is nothing between them.

Both are free to download. Clock Twirling sells 1 one-off in-app purchase. 一年级数学认时间 asks for nothing beyond the download.

一年级数学认时间 ships an update every 10 months, Clock Twirling weekly. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | 一年级数学认时间 | Clock Twirling |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 10 months | **Weekly** |
| Size | 102 MB | 4 MB |
| Requires iOS | **10.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [涛 陈](https://appshunter.io/developer/1509220765) | [zhenhua qin](https://appshunter.io/developer/457243793) |

## What reviewers say

### 一年级数学认时间

[App page](https://appshunter.io/ios/app/id1029734337)

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

**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 一年级数学认时间 free?

一年级数学认时间 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 一年级数学认时间 or Clock Twirling have ads?

Clock Twirling shows ads; 一年级数学认时间 does not.

### Which is updated more often, 一年级数学认时间 or Clock Twirling?

一年级数学认时间 ships an update every 10 months, and Clock Twirling weekly. Most recently, 一年级数学认时间 was updated on November 6, 2026 and Clock Twirling on November 5, 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.*