# BMS Tool vs ExtraPOWER App

The clearest difference is in-app purchases: ExtraPOWER App at none against BMS Tool's 1. ExtraPOWER App also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.2). On price and device support there is nothing between them.

Both are free to download. BMS Tool sells 1 one-off in-app purchase. ExtraPOWER App asks for nothing beyond the download.

## The numbers

| Metric | BMS Tool | ExtraPOWER App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (7 ratings)](https://appshunter.io/ios/app/bms-tool/id1511343379/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 33 MB |
| Requires iOS | 15.2 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [e77code GmbH](https://appshunter.io/developer/1375405425) | [奎 江](https://appshunter.io/developer/1864793050) |

## What reviewers say

### BMS Tool

[App page](https://appshunter.io/ios/app/bms-tool/id1511343379)

Monitor your battery management systems via Bluetooth. Supports multiple BMS types including Liontron, XiaoXiang, ANT, and Wattstunde. Offers a screen always-on mode and macOS compatibility.

**Highlights:** Screen Always ON mode, Multiple BMS support, Liontron BMS read-only, XiaoXiang BMS read-only, ANT BMS read-only, Wattstunde LiFePo4 read-only, macOS support

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### ExtraPOWER App

[App page](https://appshunter.io/ios/app/extrapower-app/id6760806980)

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

**In-app purchases:** none


## Frequently asked questions

### Is BMS Tool free?

BMS Tool is free to download, with in-app purchases available.

### Is ExtraPOWER App free?

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

### Do BMS Tool or ExtraPOWER App have ads?

BMS Tool shows ads; ExtraPOWER App does not.

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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.*