# AELOS STEM vs 商业易筋经

The clearest difference is update cadence: 商业易筋经 at every 3 weeks against AELOS STEM's every 3 months. AELOS STEM's advantage is iOS requirement (8.0 vs 10). 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.

AELOS STEM ships an update every 3 months, 商业易筋经 every 3 weeks. The most recent releases landed on October 4, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | AELOS STEM | 商业易筋经 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Size | 97 MB | 38 MB |
| Requires iOS | **8.0** | 10 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Leju(Shenzhen) Robot Technology CO., Ltd](https://appshunter.io/developer/1133429668) | [Hangzhou Facing the Sea Technology Co., Ltd](https://appshunter.io/developer/1748996459) |

## What reviewers say

### AELOS STEM

[App page](https://appshunter.io/ios/app/aelos-stem/id1335859984)

**Features:** macOS Compatibility

**In-app purchases:** none


### 商业易筋经

[App page](https://appshunter.io/ios/app/id6503337733)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AELOS STEM free?

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

### Is 商业易筋经 free?

商业易筋经 is free to download, with no in-app purchases.

### Do AELOS STEM or 商业易筋经 have ads?

Neither AELOS STEM nor 商业易筋经 shows ads.

### Which is updated more often, AELOS STEM or 商业易筋经?

AELOS STEM ships an update every 3 months, and 商业易筋经 every 3 weeks. Most recently, AELOS STEM was updated on October 4, 2026 and 商业易筋经 on October 6, 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.*