# 化百道 vs IBI

The clearest difference is update cadence: 化百道 at every 10 days against IBI's monthly. 化百道 also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

化百道 ships an update every 10 days, IBI monthly. The most recent releases landed on October 19, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | 化百道 | IBI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Monthly |
| Size | 35 MB | 29 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Huadao Technology Co., Ltd.‌](https://appshunter.io/developer/1872918205) | [Biuged Precise Instruments (Guangzhou) Co., Ltd.](https://appshunter.io/developer/6784089182) |

## What reviewers say

### 化百道

[App page](https://appshunter.io/ios/app/id6758433501)

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

**In-app purchases:** none


### IBI

[App page](https://appshunter.io/ios/app/ibi/id6784089180)

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

**In-app purchases:** none


## Frequently asked questions

### Is 化百道 free?

化百道 is free to download, with no in-app purchases.

### Is IBI free?

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

### Do 化百道 or IBI have ads?

Neither 化百道 nor IBI shows ads.

### Which is updated more often, 化百道 or IBI?

化百道 ships an update every 10 days, and IBI monthly. Most recently, 化百道 was updated on October 19, 2026 and IBI on October 8, 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.*