# Supervolt vs Reaction Time Test

The clearest difference is update cadence: Reaction Time Test at every 8 days against Supervolt's monthly. Supervolt's advantage is iOS requirement (15.6 vs 17.0). 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, Reaction Time Test every 8 days. The most recent releases landed on October 9, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Supervolt | Reaction Time Test |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 42.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 8 days** |
| Monetization | Free | — |
| Size | 11 MB | 5 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bauer Trading GmbH](https://appshunter.io/developer/1552664041) | [Jinwan Kim](https://appshunter.io/developer/1446513824) |

## 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


### Reaction Time Test

[App page](https://appshunter.io/ios/app/reaction-time-test-millis/id6805464656)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Supervolt free?

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

### Is Reaction Time Test free?

Reaction Time Test is free to download, with no in-app purchases.

### Do Supervolt or Reaction Time Test have ads?

Neither Supervolt nor Reaction Time Test shows ads.

### Which is updated more often, Supervolt or Reaction Time Test?

Supervolt ships an update monthly, and Reaction Time Test every 8 days. Most recently, Supervolt was updated on October 9, 2026 and Reaction Time Test on October 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.*