# Aspect Ratio Pro vs Calculator Toolkit

The clearest difference is price: Calculator Toolkit at Free against Aspect Ratio Pro's $3.99. Calculator Toolkit also leads on iOS requirement (15.1 vs 18.6). Aspect Ratio Pro's advantage is update cadence (every 3 weeks vs every 3 months). On ads, in-app purchases and device support there is nothing between them.

Calculator Toolkit is free to download; Aspect Ratio Pro costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Aspect Ratio Pro ships an update every 3 weeks, Calculator Toolkit every 3 months. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Aspect Ratio Pro | Calculator Toolkit |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/aspect-ratio-pro/id6747417099/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Paid | — |
| Size | 42 MB | 56 MB |
| Requires iOS | 18.6 | **15.1** |
| Devices | iPhone, Mac | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [App ahead GmbH](https://appshunter.io/developer/955848754) | [Urmin Hirpara](https://appshunter.io/developer/1890506463) |

## What reviewers say

### Aspect Ratio Pro

[App page](https://appshunter.io/ios/app/aspect-ratio-pro/id6747417099)

This app helps you quickly solve for an unknown value in a proportion. Simply input three known numbers, and it will calculate the fourth, making ratio and proportion calculations effortless.

**Highlights:** Rule of three calculations, Instant fourth value calculation, Ratio and proportion solver, Intuitive input interface, Supports iPhone and Mac

**In-app purchases:** none


### Calculator Toolkit

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

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Aspect Ratio Pro free?

Aspect Ratio Pro costs $3.99, with no in-app purchases.

### Is Calculator Toolkit free?

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

### Do Aspect Ratio Pro or Calculator Toolkit have ads?

Neither Aspect Ratio Pro nor Calculator Toolkit shows ads.

### Which is updated more often, Aspect Ratio Pro or Calculator Toolkit?

Aspect Ratio Pro ships an update every 3 weeks, and Calculator Toolkit every 3 months. Most recently, Aspect Ratio Pro was updated on October 24, 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.*