# Mental Math Fun vs 认识字母

The clearest difference is update cadence: Mental Math Fun at every 2 days against 认识字母's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Mental Math Fun sells 2 in-app purchases, starting at $2.99 per year and 认识字母 sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Mental Math Fun ships an update every 2 days, 认识字母 every 3 weeks. The most recent releases landed on October 12, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Mental Math Fun | 认识字母 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 weeks |
| Size | 5 MB | 8 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [光 韩](https://appshunter.io/developer/6772845629) | [中周 王](https://appshunter.io/developer/1611287450) |

## What reviewers say

### Mental Math Fun

[App page](https://appshunter.io/ios/app/mental-math-fun/id6772945811)

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP Zone Subscription | $2.99 | per year |
| Unlock All Features | $4.99 | one-time |


### 认识字母

[App page](https://appshunter.io/ios/app/abc/id6774992585)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月订阅 | $0.99 | per month |
| 年订阅 | $4.99 | per year |
| 终身解锁 | $2.99 | one-time |


## Frequently asked questions

### Is Mental Math Fun free?

Mental Math Fun is free to download, with in-app purchases available.

### Is 认识字母 free?

认识字母 is free to download, with in-app purchases available.

### Do Mental Math Fun or 认识字母 have ads?

Neither Mental Math Fun nor 认识字母 shows ads.

### Which is updated more often, Mental Math Fun or 认识字母?

Mental Math Fun ships an update every 2 days, and 认识字母 every 3 weeks. Most recently, Mental Math Fun was updated on October 12, 2026 and 认识字母 on October 9, 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.*