# Smart Clocks vs 写字问问

The clearest difference is price: Smart Clocks at Free against 写字问问's $0.99. Smart Clocks also leads on update cadence (every 4 weeks vs every 2 months) and iOS requirement (12.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

Smart Clocks is free to download; 写字问问 costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Smart Clocks ships an update every 4 weeks, 写字问问 every 2 months. Both last shipped on October 6, 2026.

## The numbers

| Metric | Smart Clocks | 写字问问 |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/smart-clocks/id6608968019/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 2 months |
| Monetization | Free | — |
| Size | 86 MB | 15 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yan Xu](https://appshunter.io/developer/1503643654) | [锋 陈](https://appshunter.io/developer/6785024902) |

## 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


### 写字问问

[App page](https://appshunter.io/ios/app/id6785155589)

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

**In-app purchases:** none


## Frequently asked questions

### Is Smart Clocks free?

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

### Is 写字问问 free?

写字问问 costs $0.99, with no in-app purchases.

### Do Smart Clocks or 写字问问 have ads?

Neither Smart Clocks nor 写字问问 shows ads.

### Which is updated more often, Smart Clocks or 写字问问?

Smart Clocks ships an update every 4 weeks, and 写字问问 every 2 months. Most recently, Smart Clocks was updated on October 6, 2026 and 写字问问 on October 6, 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.*