# Conversion Calculator vs Unit Converters

The clearest difference is in-app purchases: Unit Converters at none against Conversion Calculator's 1. Unit Converters also leads on update cadence (every 5 days vs every 5 weeks) and iOS requirement (11.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Conversion Calculator sells 1 one-off in-app purchase. Unit Converters asks for nothing beyond the download.

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

## The numbers

| Metric | Conversion Calculator | Unit Converters |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (165 ratings)](https://appshunter.io/ios/app/conversion-calculator-metric/id6468678523/reviews)** | — |
| Number of ratings | **165** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 10 MB | 33 MB |
| Requires iOS | 17.0 | **11.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Collins Cheruiyot](https://appshunter.io/developer/1579009978) | [Dhiraj Sharma](https://appshunter.io/developer/1612823569) |

## 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 Converters

[App page](https://appshunter.io/ios/app/unit-converters-all-units/id6468910020)

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

**In-app purchases:** none


## Frequently asked questions

### Is Conversion Calculator free?

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

### Is Unit Converters free?

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

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

Neither Conversion Calculator nor Unit Converters shows ads.

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

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