# Unit Convert Master vs Metrix

The clearest difference is in-app purchases: Unit Convert Master at none against Metrix's 1. Metrix's advantage is ads (none vs shown) and update cadence (weekly vs every 4 months). On price and device support there is nothing between them.

Both are free to download. Metrix sells 1 in-app purchase, starting at $0.99 per year. Unit Convert Master asks for nothing beyond the download.

Unit Convert Master ships an update every 4 months, Metrix weekly. The most recent releases landed on September 13, 2026 and June 2, 2026 respectively.

## The numbers

| Metric | Unit Convert Master | Metrix |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/unit-convert-master/id6743671551/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | Ad-supported | — |
| Size | 4 MB | 38 MB |
| Requires iOS | 18.2 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mizuki Hoshida](https://appshunter.io/developer/1797942917) | [INHEE KIM18382145061](https://appshunter.io/developer/1807701846) |

## What reviewers say

### Unit Convert Master

[App page](https://appshunter.io/ios/app/unit-convert-master/id6743671551)

Easily convert between over 100 measurement units across 15 categories. This app offers a user-friendly interface, offline functionality, and a history of your conversions for quick access. Ideal for students, professionals, and everyday users needing precise calculations.

**Highlights:** 15+ conversion categories, 100+ measurement units, Intuitive interface with themes, Custom keyboard for input, Conversion history with search, Offline functionality

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

**In-app purchases:** none


### Metrix

[App page](https://appshunter.io/ios/app/metrix-currency-and-unit/id6752914776)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Subscription | $0.99 | per year |


## Frequently asked questions

### Is Unit Convert Master free?

Unit Convert Master is free to download, with no in-app purchases.

### Is Metrix free?

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

### Do Unit Convert Master or Metrix have ads?

Unit Convert Master shows ads; Metrix does not.

### Which is updated more often, Unit Convert Master or Metrix?

Unit Convert Master ships an update every 4 months, and Metrix weekly. Most recently, Unit Convert Master was updated on September 13, 2026 and Metrix on June 2, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*