# Units Converter & Calculator vs VisualMX

The clearest difference is in-app purchases: VisualMX at none against Units Converter & Calculator's 1. VisualMX also leads on ads (none vs shown). Units Converter & Calculator's advantage is update cadence (every 3 weeks vs every 4 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Units Converter & Calculator sells 1 one-off in-app purchase. VisualMX asks for nothing beyond the download.

Units Converter & Calculator ships an update every 3 weeks, VisualMX every 4 months. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Units Converter & Calculator | VisualMX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (32 ratings)](https://appshunter.io/ios/app/units-converter-and-calculator/id1515811220/reviews)** | — |
| Number of ratings | **32** | — |
| Positive reviews | 27.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 172 MB | 33 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alok Singh](https://appshunter.io/developer/1508795536) | [iQmenic](https://appshunter.io/developer/1246722583) |

## What reviewers say

### Units Converter & Calculator

[App page](https://appshunter.io/ios/app/units-converter-and-calculator/id1515811220)

This app offers comprehensive unit conversions across over 30 categories with more than 200 units. It also features an extensive library of over 180 physical constants with detailed explanations and learning modes to test your knowledge.

**Highlights:** 30+ conversion categories, 200+ units, 180+ physical constants, Learning and challenge modes, Progress tracking, Conversion history

**Features:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | one-time |


### VisualMX

[App page](https://appshunter.io/ios/app/visualmx/id6447254318)

**In-app purchases:** none


## Frequently asked questions

### Is Units Converter & Calculator free?

Units Converter & Calculator is free to download, with in-app purchases available.

### Is VisualMX free?

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

### Do Units Converter & Calculator or VisualMX have ads?

Units Converter & Calculator shows ads; VisualMX does not.

### Which is updated more often, Units Converter & Calculator or VisualMX?

Units Converter & Calculator ships an update every 3 weeks, and VisualMX every 4 months. Most recently, Units Converter & Calculator was updated on November 3, 2026 and VisualMX on November 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.*