# Virginia Driver Test vs Potential Converter

The clearest difference is in-app purchases: Potential Converter at none against Virginia Driver Test's 1. Potential Converter also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Virginia Driver Test sells 1 one-off in-app purchase. Potential Converter asks for nothing beyond the download.

Virginia Driver Test ships an update every 4 months, Potential Converter every 6 months. The most recent releases landed on October 27, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Virginia Driver Test | Potential Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/potential-converter/id6760157743/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 4 months** | Every 6 months |
| Monetization | — | Free |
| Size | 30 MB | 0 MB |
| Requires iOS | 17.0 | 17 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [俊柯 杨](https://appshunter.io/developer/1706946542) | [Dianzhao Lin](https://appshunter.io/developer/1882906950) |

## What reviewers say

### Virginia Driver Test

[App page](https://appshunter.io/ios/app/virginia-driver-test-dmvcool/id6502399895)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


### Potential Converter

[App page](https://appshunter.io/ios/app/potential-converter/id6760157743)

This tool helps electrochemists, researchers, and students quickly convert measured potentials between various reference electrode scales. It supports 19 common electrodes and provides educational information, working offline with an intuitive interface.

**Highlights:** Convert between 19 common reference electrodes, Instant, real-time conversions, Supports SHE, Ag/AgCl, SCE, MSE, and more, Educational information on reference electrodes, Clean, intuitive interface, Offline functionality, Copy results with one tap

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

**In-app purchases:** none


## Frequently asked questions

### Is Virginia Driver Test free?

Virginia Driver Test is free to download, with in-app purchases available.

### Is Potential Converter free?

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

### Do Virginia Driver Test or Potential Converter have ads?

Virginia Driver Test shows ads; Potential Converter does not.

### Which is updated more often, Virginia Driver Test or Potential Converter?

Virginia Driver Test ships an update every 4 months, and Potential Converter every 6 months. Most recently, Virginia Driver Test was updated on October 27, 2026 and Potential Converter on October 31, 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.*