# 侦探推理 vs 中考满分·化学

The clearest difference is in-app purchases: 侦探推理 at none against 中考满分·化学's 3. 中考满分·化学's advantage is ads (none vs shown) and update cadence (weekly vs every 52 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. 中考满分·化学 sells 3 in-app purchases, starting at $0.99 per month. 侦探推理 asks for nothing beyond the download.

侦探推理 ships an update every 52 months, 中考满分·化学 weekly. The most recent releases landed on October 7, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | 侦探推理 | 中考满分·化学 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 52 months | **Weekly** |
| Size | 18 MB | 18 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Yuanhao Information Technology Co., Ltd.](https://appshunter.io/developer/697767253) | [大勇 阎](https://appshunter.io/developer/1068052430) |

## What reviewers say

### 侦探推理

[App page](https://appshunter.io/ios/app/id904629372)

**Features:** macOS Compatibility

**In-app purchases:** none


### 中考满分·化学

[App page](https://appshunter.io/ios/app/id6465680135)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 包月 | $0.99 | per month |
| 包年 | $9.99 | per year |
| 购买一个知识点集 | $0.99 | one-time |


## Frequently asked questions

### Is 侦探推理 free?

侦探推理 is free to download, with no in-app purchases.

### Is 中考满分·化学 free?

中考满分·化学 is free to download, with in-app purchases available.

### Do 侦探推理 or 中考满分·化学 have ads?

侦探推理 shows ads; 中考满分·化学 does not.

### Which is updated more often, 侦探推理 or 中考满分·化学?

侦探推理 ships an update every 52 months, and 中考满分·化学 weekly. Most recently, 侦探推理 was updated on October 7, 2026 and 中考满分·化学 on September 16, 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.*