# 理想连山 vs IBI

The clearest difference is update cadence: 理想连山 at every 10 days against IBI's monthly. IBI's advantage is iOS requirement (15.0 vs 17.0). 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.

理想连山 ships an update every 10 days, IBI monthly. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 理想连山 | IBI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Monthly |
| Size | 144 MB | 29 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [理想工业智能科技(江苏)有限公司](https://appshunter.io/developer/1846524622) | [Biuged Precise Instruments (Guangzhou) Co., Ltd.](https://appshunter.io/developer/6784089182) |

## What reviewers say

### 理想连山

[App page](https://appshunter.io/ios/app/id6504025656)

**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 理想连山 free?

理想连山 is free to download, with no in-app purchases.

### Is IBI free?

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

### Do 理想连山 or IBI have ads?

Neither 理想连山 nor IBI shows ads.

### Which is updated more often, 理想连山 or IBI?

理想连山 ships an update every 10 days, and IBI monthly. Most recently, 理想连山 was updated on November 4, 2026 and IBI on October 31, 2026.

---

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