# 鞍钢e学 vs Math Key

The clearest difference is price: 鞍钢e学 at Free against Math Key's $1.99. 鞍钢e学 also leads on iOS requirement (12 vs 17.0). Math Key's advantage is update cadence (every 3 weeks vs every 17 months). On ads, in-app purchases and device support there is nothing between them.

鞍钢e学 is free to download; Math Key costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

鞍钢e学 ships an update every 17 months, Math Key every 3 weeks. The most recent releases landed on October 1, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | 鞍钢e学 | Math Key |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 3 weeks** |
| Size | 335 MB | 1 MB |
| Requires iOS | **12** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ansteel Information Industry Corporation Ltd.](https://appshunter.io/developer/1121144925) | [1STGROUP PRIVATE LIMITED](https://appshunter.io/developer/6773183984) |

## What reviewers say

### 鞍钢e学

[App page](https://appshunter.io/ios/app/e/id6446336831)

**Features:** macOS Compatibility

**In-app purchases:** none


### Math Key

[App page](https://appshunter.io/ios/app/math-key/id6790252476)

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

**In-app purchases:** none


## Frequently asked questions

### Is 鞍钢e学 free?

鞍钢e学 is free to download, with no in-app purchases.

### Is Math Key free?

Math Key costs $1.99, with no in-app purchases.

### Do 鞍钢e学 or Math Key have ads?

Neither 鞍钢e学 nor Math Key shows ads.

### Which is updated more often, 鞍钢e学 or Math Key?

鞍钢e学 ships an update every 17 months, and Math Key every 3 weeks. Most recently, 鞍钢e学 was updated on October 1, 2026 and Math Key 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.*