# Aspect Ratio Pro vs A2SOPlus

The clearest difference is price: A2SOPlus at Free against Aspect Ratio Pro's $3.99. A2SOPlus also leads on rating (5.0 vs 4.0) and iOS requirement (15.0 vs 18.6). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

A2SOPlus 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.

A2SOPlus holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Aspect Ratio Pro ships an update every 3 weeks, A2SOPlus fortnightly. The most recent releases landed on October 15, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Aspect Ratio Pro | A2SOPlus |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/aspect-ratio-pro/id6747417099/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/a2soplus/id6759783555/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Paid | **Free** |
| Size | 42 MB | 90 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, Mac | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [App ahead GmbH](https://appshunter.io/developer/955848754) | [国 万](https://appshunter.io/developer/1754060214) |

## 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


### A2SOPlus

[App page](https://appshunter.io/ios/app/a2soplus/id6759783555)

Streamline field service operations with a comprehensive platform. Manage work orders, track technician activities, control resources like materials and vehicles, oversee sales, and monitor performance. All essential field service functions are integrated into one smart solution.

**Highlights:** Work order management, Technician activity tracking, Material control, Vehicle and tool management, Sales operations oversight, Performance monitoring

**Features:** macOS Compatibility, 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 A2SOPlus free?

A2SOPlus is free to download, with no in-app purchases.

### Which has better reviews, Aspect Ratio Pro or A2SOPlus?

A2SOPlus is rated higher. Aspect Ratio Pro averages 4.0 out of 5 from 1 ratings, while A2SOPlus averages 5.0 from 1 ratings.

### Do Aspect Ratio Pro or A2SOPlus have ads?

Neither Aspect Ratio Pro nor A2SOPlus shows ads.

### Which is updated more often, Aspect Ratio Pro or A2SOPlus?

Aspect Ratio Pro ships an update every 3 weeks, and A2SOPlus fortnightly. Most recently, Aspect Ratio Pro was updated on October 15, 2026 and A2SOPlus on October 17, 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.*