# Unit Converter vs PhosphorTEX

The clearest difference is price: Unit Converter at Free against PhosphorTEX's $0.99. Unit Converter also leads on update cadence (weekly vs every 5 months) and iOS requirement (17.6 vs 26.4). PhosphorTEX's advantage is in-app purchases (none vs 3) and ads (none vs shown). On device support there is nothing between them.

Unit Converter is free to download; PhosphorTEX costs $0.99 up front. Unit Converter sells 3 in-app purchases, starting at $0.99 per month. PhosphorTEX asks for nothing beyond the download.

Unit Converter ships an update weekly, PhosphorTEX every 5 months. The most recent releases landed on October 15, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Unit Converter | PhosphorTEX |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.8 (1.5K ratings)](https://appshunter.io/ios/app/unit-converter-milas-tools/id403110615/reviews)** | — |
| Number of ratings | **1.5K** | — |
| Positive reviews | 87.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 13 MB | 3 MB |
| Requires iOS | **17.6** | 26.4 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Scott DeSapio](https://appshunter.io/developer/403110618) | [Stuart Woolley](https://appshunter.io/developer/315697638) |

## What reviewers say

### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter-milas-tools/id403110615)

This app offers a comprehensive unit conversion tool with over 300 units across 27 categories. It supports compound units, date calculations, and conversions between various number systems, including historical units. The interface is designed for ease of use with smart keyboards and customizable display options.

**Highlights:** 27 conversion categories, 300+ units, Compound unit support, Date calculator, Fractions and number conversions, Historical units, Customizable interface

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mila's Tools PRO Monthly | $0.99 | per month |
| Mila's Tools PRO Yearly | $6.99 | per year |
| Mila's Tools PRO Lifetime | $9.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Quick and accurate conversions
- 💡 Comprehensive list of units
- 🔍 Convenient for everyday use
- ⭐ Reliable and consistent

**What reviewers complain about**

- 🐛 Scrolling issues on newer devices
- 🔍 Limited customization options
- 💰 Desire for free version to remain free

**Reported bugs**

- Crashes or freezes on some devices
- Conversion results not displaying properly

**Requested features**

- Ability to customize order of conversion units
- Addition of more specialized units (e.g. astronomical distances)
- Improved scrolling functionality on all devices


### PhosphorTEX

[App page](https://appshunter.io/ios/app/phosphortex/id6762761951)

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

**In-app purchases:** none


## Frequently asked questions

### Is Unit Converter free?

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

### Is PhosphorTEX free?

PhosphorTEX costs $0.99, with no in-app purchases.

### Do Unit Converter or PhosphorTEX have ads?

Unit Converter shows ads; PhosphorTEX does not.

### Which is updated more often, Unit Converter or PhosphorTEX?

Unit Converter ships an update weekly, and PhosphorTEX every 5 months. Most recently, Unit Converter was updated on October 15, 2026 and PhosphorTEX on October 11, 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.*