# 应化e家 vs 数据长春

The clearest difference is update cadence: 数据长春 at every 2 months against 应化e家's every 9 months. 应化e家's advantage is iOS requirement (11.0 vs 13.0). 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.

应化e家 ships an update every 9 months, 数据长春 every 2 months. The most recent releases landed on October 2, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 应化e家 | 数据长春 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 months** |
| Size | 283 MB | 146 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Changchun Institute of Applied Chemistry Chinese Academy of Sciences](https://appshunter.io/developer/1544012365) | [哈尔滨市龙浩信息科技开发有限公司](https://appshunter.io/developer/955359008) |

## What reviewers say

### 应化e家

[App page](https://appshunter.io/ios/app/e/id1544414983)

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

**In-app purchases:** none


### 数据长春

[App page](https://appshunter.io/ios/app/id1545099307)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 应化e家 free?

应化e家 is free to download, with no in-app purchases.

### Is 数据长春 free?

数据长春 is free to download, with no in-app purchases.

### Do 应化e家 or 数据长春 have ads?

Neither 应化e家 nor 数据长春 shows ads.

### Which is updated more often, 应化e家 or 数据长春?

应化e家 ships an update every 9 months, and 数据长春 every 2 months. Most recently, 应化e家 was updated on October 2, 2026 and 数据长春 on October 27, 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.*