# Conversion Calculator vs Unit Converter

The clearest difference is review sentiment: Conversion Calculator at 100% against Unit Converter's 0%. Conversion Calculator also leads on rating (4.8 vs 3.7) and ratings volume (165 vs 3). Unit Converter's advantage is update cadence (daily vs every 5 weeks) and iOS requirement (12.0 vs 17.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Conversion Calculator holds the better App Store score, 4.8 against 3.7. That said, the two scores are not equally well evidenced: Conversion Calculator has 165 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 100% of Conversion Calculator's written reviews are positive against 0% of Unit Converter's.

Conversion Calculator ships an update every 5 weeks, Unit Converter daily. Both last shipped on October 30, 2026.

## The numbers

| Metric | Conversion Calculator | Unit Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (165 ratings)](https://appshunter.io/ios/app/conversion-calculator-metric/id6468678523/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/unit-converter-fromto/id6738796120/reviews) |
| Number of ratings | **165** | 3 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Daily** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 10 MB | 55 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Collins Cheruiyot](https://appshunter.io/developer/1579009978) | [Farid Fakhnavar](https://appshunter.io/developer/1692223826) |

## What reviewers say

### Conversion Calculator

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

This utility app offers a comprehensive unit conversion tool for various needs, including cooking, travel, and work. It supports over 120 units across 15 categories, with metric and imperial options. The app works offline and allows for customization of displayed decimals and category order.

**Highlights:** 15 categories and 120+ units, Metric and imperial conversions, Cooking, weight, length, temperature, and more, Offline functionality, Customizable decimal display, Apple Watch app

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

**In-app purchases (1)**

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


### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter-fromto/id6738796120)

This versatile tool simplifies daily tasks by offering quick and reliable conversions for over 20 unit types. Its clean, intuitive interface makes converting measurements easy for students, professionals, and travelers alike. Enjoy offline functionality and a lightweight design that won't drain your device's resources.

**Highlights:** Over 20 unit categories, Length, weight, volume, temperature, speed, time, energy, pressure conversions, Real-time currency exchange rates, User-friendly interface, Lightweight and fast performance, Offline functionality

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Pro Sale | $6.99 | one-time |
| Lifetime Pro | $9.99 | one-time |


## Frequently asked questions

### Is Conversion Calculator free?

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

### Is Unit Converter free?

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

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

Conversion Calculator is rated higher. Conversion Calculator averages 4.8 out of 5 from 165 ratings, while Unit Converter averages 3.7 from 3 ratings.

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

Neither Conversion Calculator nor Unit Converter shows ads.

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

Conversion Calculator ships an update every 5 weeks, and Unit Converter daily. Most recently, Conversion Calculator was updated on October 30, 2026 and Unit Converter on October 30, 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.*