# Supervolt vs EJBMS PRO

The clearest difference is update cadence: Supervolt at monthly against EJBMS PRO's every 11 months. EJBMS PRO's advantage is iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases and device support 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, EJBMS PRO every 11 months. The most recent releases landed on August 6, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Supervolt | EJBMS PRO |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 42.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 11 months |
| Monetization | Free | — |
| Size | 11 MB | 43 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bauer Trading GmbH](https://appshunter.io/developer/1552664041) | [E&Jtechnology](https://appshunter.io/developer/1274910981) |

## 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


### EJBMS PRO

[App page](https://appshunter.io/ios/app/ejbms-pro/id1613901461)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Supervolt free?

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

### Is EJBMS PRO free?

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

### Do Supervolt or EJBMS PRO have ads?

Neither Supervolt nor EJBMS PRO shows ads.

### Which is updated more often, Supervolt or EJBMS PRO?

Supervolt ships an update monthly, and EJBMS PRO every 11 months. Most recently, Supervolt was updated on August 6, 2026 and EJBMS PRO on September 20, 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.*