# Potential Converter vs Noesis

The clearest difference is in-app purchases: Potential Converter at none against Noesis's 2. Noesis's advantage is update cadence (every 10 days vs every 6 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Noesis sells 2 in-app purchases, starting at $12.99 per month. Potential Converter asks for nothing beyond the download.

Potential Converter ships an update every 6 months, Noesis every 10 days. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Potential Converter | Noesis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/potential-converter/id6760157743/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 10 days** |
| Monetization | Free | — |
| Size | 0 MB | 111 MB |
| Requires iOS | 17 | **16.4** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 17+ |
| Developer | [Dianzhao Lin](https://appshunter.io/developer/1882906950) | [Abhishek Chauhan](https://appshunter.io/developer/1886624177) |

## What reviewers say

### 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


### Noesis

[App page](https://appshunter.io/ios/app/noesis-math-physics-finance/id6804661027)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Noesis Monthly | $12.99 | per month |
| Noesis Yearly | $34.99 | per year |


## Frequently asked questions

### Is Potential Converter free?

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

### Is Noesis free?

Noesis is free to download, with in-app purchases available.

### Do Potential Converter or Noesis have ads?

Neither Potential Converter nor Noesis shows ads.

### Which is updated more often, Potential Converter or Noesis?

Potential Converter ships an update every 6 months, and Noesis every 10 days. Most recently, Potential Converter was updated on October 5, 2026 and Noesis on October 7, 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.*