# 饼干题库 vs Mental Math Fun

The clearest difference is update cadence: Mental Math Fun at every 2 days against 饼干题库's every 2 months. 饼干题库's advantage is iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 饼干题库 sells 9 one-off in-app purchases and Mental Math Fun sells 2 in-app purchases, starting at $2.99 per year. Whichever you choose, the download price is not the number that matters.

饼干题库 ships an update every 2 months, Mental Math Fun every 2 days. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | 饼干题库 | Mental Math Fun |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Size | 24 MB | 5 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [亮 王](https://appshunter.io/developer/1670055477) | [光 韩](https://appshunter.io/developer/6772845629) |

## What reviewers say

### 饼干题库

[App page](https://appshunter.io/ios/app/id6476104389)

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 600小饼干 | $0.99 | one-time |
| 一个月 | $1.99 | one-time |
| 1200小饼干 | $1.99 | one-time |
| 1800小饼干 | $2.99 | one-time |
| 3000小饼干 | $3.99 | one-time |
| 半年 | $4.99 | one-time |
| 一年 | $6.99 | one-time |
| 5000小饼干 | $6.99 | one-time |
| 10000小饼干 | $12.99 | one-time |


### 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 |


## Frequently asked questions

### Is 饼干题库 free?

饼干题库 is free to download, with in-app purchases available.

### Is Mental Math Fun free?

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

### Do 饼干题库 or Mental Math Fun have ads?

Neither 饼干题库 nor Mental Math Fun shows ads.

### Which is updated more often, 饼干题库 or Mental Math Fun?

饼干题库 ships an update every 2 months, and Mental Math Fun every 2 days. Most recently, 饼干题库 was updated on November 4, 2026 and Mental Math Fun on November 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*