# BMS Tool vs RBT BMS

The clearest difference is in-app purchases: RBT BMS at none against BMS Tool's 1. RBT BMS also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.2). BMS Tool's advantage is update cadence (every 2 months vs every 7 months). On price and device support there is nothing between them.

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

BMS Tool ships an update every 2 months, RBT BMS every 7 months. The most recent releases landed on September 16, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | BMS Tool | RBT BMS |
| --- | --- | --- |
| 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** | Every 7 months |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 40 MB |
| Requires iOS | 15.2 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [e77code GmbH](https://appshunter.io/developer/1375405425) | [观发 黄](https://appshunter.io/developer/1770670688) |

## 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 |


### RBT BMS

[App page](https://appshunter.io/ios/app/rbt-bms/id6737222187)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BMS Tool free?

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

### Is RBT BMS free?

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

### Do BMS Tool or RBT BMS have ads?

BMS Tool shows ads; RBT BMS does not.

### Which is updated more often, BMS Tool or RBT BMS?

BMS Tool ships an update every 2 months, and RBT BMS every 7 months. Most recently, BMS Tool was updated on September 16, 2026 and RBT BMS on September 14, 2026.

---

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