# Unit Converter vs Conversion Calculator

The clearest difference is ads: Conversion Calculator at none against Unit Converter's shown. Conversion Calculator also leads on update cadence (every 5 weeks vs every 7 months) and ratings volume (157 vs 13). On price, rating, in-app purchases and monetization model there is nothing between them.

Both are free to download. Unit Converter sells 2 in-app purchases, starting at $4.99 per month and Conversion Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for Unit Converter against 4.8 for Conversion Calculator. That said, the two scores are not equally well evidenced: Conversion Calculator has 157 ratings behind it against 13, so its average is the more settled of the two.

Unit Converter ships an update every 7 months, Conversion Calculator every 5 weeks. The most recent releases landed on September 14, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Unit Converter | Conversion Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (13 ratings)](https://appshunter.io/ios/app/unit-converter/id1377049882/reviews) | [4.8 (157 ratings)](https://appshunter.io/ios/app/conversion-calculator-metric/id6468678523/reviews) |
| Number of ratings | 13 | **157** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 7 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 40 MB | 7 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [xNeat.com](https://appshunter.io/developer/327498295) | [Collins Cheruiyot](https://appshunter.io/developer/1579009978) |

## What reviewers say

### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter/id1377049882)

This app offers a wide range of unit conversions for various measurements, from temperature to length. It features a user-friendly interface, customizable themes, and smart features that remember your frequent conversions. It also links to external apps for specialized tasks.

**Highlights:** Broad conversion spectrum, Personalizable themes, User-friendly interface, Smart features for frequent conversions, Links to specialized external apps

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unit Converter | $4.99 | per month |
| Unit Converter | $39.99 | per year |


### Conversion Calculator

[App page](https://appshunter.io/ios/app/conversion-calculator-metric/id6468678523)

Easily convert between metric and imperial units for weight, length, temperature, area, and time. This app offers precise, fast results with a clean interface, working offline for daily, travel, school, or work needs.

**Highlights:** Metric and imperial unit conversion, Weight, length, temperature, area, time, Offline functionality, Precise and fast results, Clean and minimal interface, Over 100 measurement types

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited access forever | $8.99 | one-time |


## Frequently asked questions

### Is Unit Converter free?

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

### Is Conversion Calculator free?

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

### Which has better reviews, Unit Converter or Conversion Calculator?

Unit Converter and Conversion Calculator are both rated 4.8 out of 5 on the App Store, from 13 and 157 ratings respectively.

### Do Unit Converter or Conversion Calculator have ads?

Unit Converter shows ads; Conversion Calculator does not.

### Which is updated more often, Unit Converter or Conversion Calculator?

Unit Converter ships an update every 7 months, and Conversion Calculator every 5 weeks. Most recently, Unit Converter was updated on September 14, 2026 and Conversion Calculator on September 26, 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.*