# EG4 BMS vs Powerwallx

The clearest difference is update cadence: EG4 BMS at every 3 days against Powerwallx's every 3 months. EG4 BMS also leads on iOS requirement (11.0 vs 15.0). 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.

EG4 BMS ships an update every 3 days, Powerwallx every 3 months. The most recent releases landed on October 7, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | EG4 BMS | Powerwallx |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 3 months |
| Size | 44 MB | 21 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [eg4](https://appshunter.io/developer/1858965001) | [耀丹 张](https://appshunter.io/developer/957957575) |

## What reviewers say

### EG4 BMS

[App page](https://appshunter.io/ios/app/eg4-bms/id6758079727)

**In-app purchases:** none


### Powerwallx

[App page](https://appshunter.io/ios/app/powerwallx/id6764206032)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is EG4 BMS free?

EG4 BMS is free to download, with no in-app purchases.

### Is Powerwallx free?

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

### Do EG4 BMS or Powerwallx have ads?

Neither EG4 BMS nor Powerwallx shows ads.

### Which is updated more often, EG4 BMS or Powerwallx?

EG4 BMS ships an update every 3 days, and Powerwallx every 3 months. Most recently, EG4 BMS was updated on October 7, 2026 and Powerwallx 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.*