# IO HAWK vs BMS Tool

The clearest difference is review sentiment: BMS Tool at 71% against IO HAWK's 22%. IO HAWK's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, update cadence and device support there is nothing between them.

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

IO HAWK ships an update every 3 months, BMS Tool every 2 months. The most recent releases landed on September 25, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | IO HAWK | BMS Tool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.9 (7 ratings)](https://appshunter.io/ios/app/bms-tool/id1511343379/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | 22.2% of reviews | **71.4% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 54 MB | 9 MB |
| Requires iOS | **10.0** | 15.2 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [IO eMobility GmbH](https://appshunter.io/developer/1142853809) | [e77code GmbH](https://appshunter.io/developer/1375405425) |

## What reviewers say

### IO HAWK

[App page](https://appshunter.io/ios/app/io-hawk/id1142853810)

This app allows you to control and monitor your electric vehicle's performance, track your rides with map integration, and compete with other users. It also features a community for sharing experiences and accessing after-sales support.

**Highlights:** Vehicle control and status monitoring, Real-time vehicle diagnostics, Ride tracking with map integration, Riding ranking and competition, Community sharing and interaction, After-sales service access

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is IO HAWK free?

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

### Is BMS Tool free?

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

### Do IO HAWK or BMS Tool have ads?

BMS Tool shows ads; IO HAWK does not.

### Which is updated more often, IO HAWK or BMS Tool?

IO HAWK ships an update every 3 months, and BMS Tool every 2 months. Most recently, IO HAWK was updated on September 25, 2026 and BMS Tool on September 16, 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.*