# Unit Converter vs Calculator Toolkit

The clearest difference is in-app purchases: Calculator Toolkit at none against Unit Converter's 1. Calculator Toolkit also leads on ads (none vs shown) and iOS requirement (15.1 vs 17.0). Unit Converter's advantage is update cadence (weekly vs every 3 months). On price and device support there is nothing between them.

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

Unit Converter ships an update weekly, Calculator Toolkit every 3 months. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Unit Converter | Calculator Toolkit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (42 ratings)](https://appshunter.io/ios/app/unit-converter-omniconvert/id1602930764/reviews)** | — |
| Number of ratings | **42** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 35 MB | 56 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jonathan Chen](https://appshunter.io/developer/1602930766) | [Urmin Hirpara](https://appshunter.io/developer/1890506463) |

## What reviewers say

### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter-omniconvert/id1602930764)

This app provides a comprehensive suite of tools for unit and currency conversions, along with various calculators and scientific constants. It offers real-time exchange rates, works offline, and supports a wide range of categories. Enjoy a user-friendly experience with features like dark mode and no conversion limits.

**Highlights:** Unit conversions, Currency conversions, Real-time exchange rates, Offline functionality, Variety of calculators, Scientific constants, Dark mode

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OmniConvert Pro | $2.99 | one-time |


### Calculator Toolkit

[App page](https://appshunter.io/ios/app/calculator-toolkit/id6762042272)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Unit Converter free?

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

### Is Calculator Toolkit free?

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

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

Unit Converter shows ads; Calculator Toolkit does not.

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

Unit Converter ships an update weekly, and Calculator Toolkit every 3 months. Most recently, Unit Converter was updated on November 3, 2026 and Calculator Toolkit on October 28, 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.*