# Unit Convert vs Conversion Calculator

The clearest difference is monetization model: Unit Convert at free against Conversion Calculator's free with in-app purchases. Unit Convert also leads on iOS requirement (15.6 vs 17.0). Conversion Calculator's advantage is rating (4.8 vs 4.5) and ratings volume (157 vs 13). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Unit Convert sells 1 one-off in-app purchase and Conversion Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Conversion Calculator holds the better App Store score, 4.8 against 4.5. 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. Written reviews split almost evenly too, at 100% and 100% positive.

Unit Convert ships an update every 3 months, Conversion Calculator every 5 weeks. The most recent releases landed on October 2, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Unit Convert | Conversion Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (13 ratings)](https://appshunter.io/ios/app/unit-convert/id1590954132/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 | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 3 MB | 7 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [River Right Ltd](https://appshunter.io/developer/1515869956) | [Collins Cheruiyot](https://appshunter.io/developer/1579009978) |

## What reviewers say

### Unit Convert

[App page](https://appshunter.io/ios/app/unit-convert/id1590954132)

This utility app offers seamless unit conversions without ads or accounts. It supports offline use, custom units, and precise fractional inch conversions, making it a powerful tool for everyday and professional needs.

**Highlights:** Ad-free and account-free operation, 100% offline functionality, Custom unit creation, Fractional inch conversion with selectable precision, Feet-inches to metric conversion, Integrated calculator for fractions, Live exchange rates (cached offline)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Exchange Rates | $0.99 | one-time |


### 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 Convert free?

Unit Convert 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 Convert or Conversion Calculator?

Conversion Calculator is rated higher. Unit Convert averages 4.5 out of 5 from 13 ratings, while Conversion Calculator averages 4.8 from 157 ratings.

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

Neither Unit Convert nor Conversion Calculator shows ads.

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

Unit Convert ships an update every 3 months, and Conversion Calculator every 5 weeks. Most recently, Unit Convert was updated on October 2, 2026 and Conversion Calculator on October 9, 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.*