# Supervolt vs Roamer BMS

The clearest difference is review sentiment: Supervolt at 42% against Roamer BMS's 17%. Roamer BMS's advantage is iOS requirement (11.0 vs 15.6). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Supervolt ships an update monthly, Roamer BMS every 2 weeks. The most recent releases landed on October 1, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | Supervolt | Roamer BMS |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **42.2% of reviews** | 16.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 11 MB | 5 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bauer Trading GmbH](https://appshunter.io/developer/1552664041) | [步泽 王](https://appshunter.io/developer/1517358781) |

## What reviewers say

### Supervolt

[App page](https://appshunter.io/ios/app/supervolt/id1552664039)

Monitor your LiFePO4 batteries with this app. It displays key parameters like capacity, voltage, current, and temperature. You can connect up to eight batteries simultaneously and name them for easy identification.

**Highlights:** Real-time battery data display, Capacity and remaining capacity, Voltage and current monitoring, Cell voltage and temperature, Connect up to 8 batteries, Name individual batteries, Two dashboard views

**Features:** macOS Compatibility

**In-app purchases:** none


### Roamer BMS

[App page](https://appshunter.io/ios/app/roamer-bms/id1606195768)

Monitor your LiFePO4 batteries wirelessly from your iPhone. View real-time state of charge, voltage, current, and internal cell voltages. Compatible only with second-generation Roamer Batteries Smart BMS.

**Highlights:** Wireless Bluetooth connection, Real-time battery monitoring, State of charge display, Voltage and current readings, Internal cell voltage display, BMS parameter adjustment (admin)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Supervolt free?

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

### Is Roamer BMS free?

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

### Do Supervolt or Roamer BMS have ads?

Neither Supervolt nor Roamer BMS shows ads.

### Which is updated more often, Supervolt or Roamer BMS?

Supervolt ships an update monthly, and Roamer BMS every 2 weeks. Most recently, Supervolt was updated on October 1, 2026 and Roamer BMS on June 4, 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.*