# 淘知口算 vs King Math 24

The clearest difference is in-app purchases: 淘知口算 at none against King Math 24's 4. 淘知口算 also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 2 months). On price and device support there is nothing between them.

Both are free to download. King Math 24 sells 4 one-off in-app purchases. 淘知口算 asks for nothing beyond the download.

淘知口算 ships an update every 2 weeks, King Math 24 every 2 months. The most recent releases landed on October 26, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | 淘知口算 | King Math 24 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Size | 40 MB | 207 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Beijing Taozhi Online Education Technology Co Ltd.](https://appshunter.io/developer/1547758130) | [Shenzhen Jiajiaoshuo Network Technology Co., Ltd](https://appshunter.io/developer/541375915) |

## What reviewers say

### 淘知口算

[App page](https://appshunter.io/ios/app/id1367384049)

**In-app purchases:** none


### King Math 24

[App page](https://appshunter.io/ios/app/king-math-24/id1544648283)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 提示道具 | $0.29 | one-time |
| Buy Hints | $0.99 | one-time |
| Remove Ads | $0.99 | one-time |
| 精致礼包 | $1.99 | one-time |


## Frequently asked questions

### Is 淘知口算 free?

淘知口算 is free to download, with no in-app purchases.

### Is King Math 24 free?

King Math 24 is free to download, with in-app purchases available.

### Do 淘知口算 or King Math 24 have ads?

King Math 24 shows ads; 淘知口算 does not.

### Which is updated more often, 淘知口算 or King Math 24?

淘知口算 ships an update every 2 weeks, and King Math 24 every 2 months. Most recently, 淘知口算 was updated on October 26, 2026 and King Math 24 on October 4, 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.*