# 钢构地图 vs 科技BIM

The clearest difference is update cadence: 科技BIM at every 5 weeks against 钢构地图's every 5 months. 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.

钢构地图 ships an update every 5 months, 科技BIM every 5 weeks. The most recent releases landed on October 10, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | 钢构地图 | 科技BIM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 5 weeks** |
| Size | 25 MB | 34 MB |
| Requires iOS | 12.1 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [权胜 左](https://appshunter.io/developer/1167870026) | [建 金](https://appshunter.io/developer/1565053694) |

## What reviewers say

### 钢构地图

[App page](https://appshunter.io/ios/app/id1271012786)

**Features:** macOS Compatibility

**In-app purchases:** none


### 科技BIM

[App page](https://appshunter.io/ios/app/bim/id6504517279)

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

**In-app purchases:** none


## Frequently asked questions

### Is 钢构地图 free?

钢构地图 is free to download, with no in-app purchases.

### Is 科技BIM free?

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

### Do 钢构地图 or 科技BIM have ads?

Neither 钢构地图 nor 科技BIM shows ads.

### Which is updated more often, 钢构地图 or 科技BIM?

钢构地图 ships an update every 5 months, and 科技BIM every 5 weeks. Most recently, 钢构地图 was updated on October 10, 2026 and 科技BIM on September 18, 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.*