# E vs 算电

The clearest difference is update cadence: 算电 at every 10 days against E's every 4 months. E's advantage is iOS requirement (13 vs 17). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

E ships an update every 4 months, 算电 every 10 days. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | E | 算电 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | Every 4 months | **Every 10 days** |
| Size | 20 MB | 1 MB |
| Requires iOS | **13** | 17 |
| Devices | — | **iPhone** |
| Age rating | 9+ | 4+ |
| Developer | [EBM-PAPST Ventilator(Shanghai)Co.,Ltd.](https://appshunter.io/developer/1587559121) | [成刚 白](https://appshunter.io/developer/1838459761) |

## What reviewers say

### E

[App page](https://appshunter.io/ios/app/e-platform/id1587559119)

**In-app purchases:** none


### 算电

[App page](https://appshunter.io/ios/app/id6752297949)

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

**In-app purchases:** none


## Frequently asked questions

### Is E free?

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

### Is 算电 free?

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

### Which is updated more often, E or 算电?

E ships an update every 4 months, and 算电 every 10 days. Most recently, E was updated on October 5, 2026 and 算电 on October 7, 2026.

---

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