# Simple Unit Converter App vs Unit Converter Superior

The clearest difference is price: Unit Converter Superior at Free against Simple Unit Converter App's $1.99. Unit Converter Superior also leads on in-app purchases (none vs 3) and ads (none vs shown). Simple Unit Converter App's advantage is update cadence (every 3 months vs every 21 months). On device support and iOS requirement there is nothing between them.

Unit Converter Superior is free to download; Simple Unit Converter App costs $1.99 up front. Simple Unit Converter App sells 3 one-off in-app purchases. Unit Converter Superior asks for nothing beyond the download.

Simple Unit Converter App ships an update every 3 months, Unit Converter Superior every 21 months. The most recent releases landed on October 22, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Simple Unit Converter App | Unit Converter Superior |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/simple-unit-converter-app/id1531584085/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 21 months |
| Monetization | Paid | — |
| Size | 4 MB | 58 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CranialDev.LLC](https://appshunter.io/developer/1445325464) | [Felix Peralta](https://appshunter.io/developer/1546086459) |

## What reviewers say

### Simple Unit Converter App

[App page](https://appshunter.io/ios/app/simple-unit-converter-app/id1531584085)

Easily convert between a vast range of measurement units, including acceleration, mass, temperature, and volume. This tool supports numerous categories to help you with everyday conversions and specialized needs.

**Highlights:** Wide array of unit types, Converts acceleration, mass, temperature, volume, and more, Supports numerous categories, User-requested additions, Intuitive interface

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NoAds | $0.99 | one-time |
| Small Tip | $1.99 | one-time |
| Generous Tip | $4.99 | one-time |


### Unit Converter Superior

[App page](https://appshunter.io/ios/app/unit-converter-superior/id1630757981)

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

**In-app purchases:** none


## Frequently asked questions

### Is Simple Unit Converter App free?

Simple Unit Converter App costs $1.99, and also offers in-app purchases.

### Is Unit Converter Superior free?

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

### Do Simple Unit Converter App or Unit Converter Superior have ads?

Simple Unit Converter App shows ads; Unit Converter Superior does not.

### Which is updated more often, Simple Unit Converter App or Unit Converter Superior?

Simple Unit Converter App ships an update every 3 months, and Unit Converter Superior every 21 months. Most recently, Simple Unit Converter App was updated on October 22, 2026 and Unit Converter Superior on October 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.*