# Aspect Ratio Pro vs Let's Go Pro

The clearest difference is price: Let's Go Pro at Free against Aspect Ratio Pro's $3.99. Let's Go Pro also leads on update cadence (every 6 days vs every 3 weeks) and iOS requirement (15.1 vs 18.6). Aspect Ratio Pro's advantage is in-app purchases (none vs 1). On ads and device support there is nothing between them.

Let's Go Pro is free to download; Aspect Ratio Pro costs $3.99 up front. Let's Go Pro sells 1 in-app purchase, starting at $4.99 per year. Aspect Ratio Pro asks for nothing beyond the download.

Aspect Ratio Pro ships an update every 3 weeks, Let's Go Pro every 6 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Aspect Ratio Pro | Let's Go Pro |
| --- | --- | --- |
| 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** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 6 days** |
| Monetization | Paid | — |
| Size | 42 MB | 52 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) | [Bahadir Volkan Ozalp](https://appshunter.io/developer/1896738332) |

## 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


### Let's Go Pro

[App page](https://appshunter.io/ios/app/lets-go-pro/id6775248056)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Let's Go Pro | $4.99 | per year |


## Frequently asked questions

### Is Aspect Ratio Pro free?

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

### Is Let's Go Pro free?

Let's Go Pro is free to download, with in-app purchases available.

### Do Aspect Ratio Pro or Let's Go Pro have ads?

Neither Aspect Ratio Pro nor Let's Go Pro shows ads.

### Which is updated more often, Aspect Ratio Pro or Let's Go Pro?

Aspect Ratio Pro ships an update every 3 weeks, and Let's Go Pro every 6 days. Most recently, Aspect Ratio Pro was updated on October 24, 2026 and Let's Go Pro on October 25, 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.*