# E vs HIO Battery

The clearest difference is update cadence: HIO Battery at every 8 days against E's every 5 weeks. E's advantage is iOS requirement (12.0 vs 15.5). 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.

E ships an update every 5 weeks, HIO Battery every 8 days. The most recent releases landed on October 17, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | E | HIO Battery |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 8 days** |
| Size | 33 MB | 44 MB |
| Requires iOS | **12.0** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [建军 刘](https://appshunter.io/developer/1718671617) | [HIO POWER LLC](https://appshunter.io/developer/6785250033) |

## What reviewers say

### E

[App page](https://appshunter.io/ios/app/e-bms/id6473353474)

**Features:** macOS Compatibility

**In-app purchases:** none


### HIO Battery

[App page](https://appshunter.io/ios/app/hio-battery/id6785250031)

**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 HIO Battery free?

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

### Do E or HIO Battery have ads?

Neither E nor HIO Battery shows ads.

### Which is updated more often, E or HIO Battery?

E ships an update every 5 weeks, and HIO Battery every 8 days. Most recently, E was updated on October 17, 2026 and HIO Battery on October 15, 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.*