# BMS Linker vs MultiBMS

The clearest difference is price: BMS Linker at Free against MultiBMS's $0.99. BMS Linker also leads on in-app purchases (none vs 11). MultiBMS's advantage is update cadence (every 4 days vs every 9 days) and device support (4 vs 2). On ads there is nothing between them.

BMS Linker is free to download; MultiBMS costs $0.99 up front. MultiBMS sells 11 one-off in-app purchases. BMS Linker asks for nothing beyond the download.

BMS Linker ships an update every 9 days, MultiBMS every 4 days. The most recent releases landed on May 16, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | BMS Linker | MultiBMS |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | — | **[4.0 (4 ratings)](https://appshunter.io/ios/app/multibms/id6771097913/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 4 days** |
| Monetization | — | Paid |
| Size | 3 MB | 36 MB |
| Requires iOS | 26.2 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [海洋 王](https://appshunter.io/developer/1889878296) | [stefan peters](https://appshunter.io/developer/1874328616) |

## What reviewers say

### BMS Linker

[App page](https://appshunter.io/ios/app/bms-linker/id6761525890)

**Features:** macOS Compatibility

**In-app purchases:** none


### MultiBMS

[App page](https://appshunter.io/ios/app/multibms/id6771097913)

Monitor multiple Bluetooth-enabled battery management systems from your iPhone. View detailed pack voltage, cell voltages, current, power, state of charge, and temperature. Build custom battery groups and visualize charging activity.

**Highlights:** Connect to multiple BMS devices, Detailed pack and cell diagnostics, Build custom parallel/series battery groups, Visualize charging and discharging, Apple Watch companion preview, Supports JiKong and JBD/Xiaoxiang hardware

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| E-Bike Rally | $0.99 | one-time |
| Bus Life | $0.99 | one-time |
| Off Grid | $0.99 | one-time |
| Minimal White | $0.99 | one-time |
| Retro Terminal | $0.99 | one-time |
| Marine | $0.99 | one-time |
| Arctic Ice | $0.99 | one-time |
| Matrix Code | $0.99 | one-time |
| Emergency | $0.99 | one-time |
| CAT Equipment | $0.99 | one-time |
| Aviation | $0.99 | one-time |


## Frequently asked questions

### Is BMS Linker free?

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

### Is MultiBMS free?

MultiBMS costs $0.99, and also offers in-app purchases.

### Do BMS Linker or MultiBMS have ads?

Neither BMS Linker nor MultiBMS shows ads.

### Which is updated more often, BMS Linker or MultiBMS?

BMS Linker ships an update every 9 days, and MultiBMS every 4 days. Most recently, BMS Linker was updated on May 16, 2026 and MultiBMS on September 22, 2026.

---

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