# Proportion Solver vs The Anemometer Attic

The clearest difference is ads: The Anemometer Attic at none against Proportion Solver's shown. The Anemometer Attic also leads on update cadence (every 2 days vs every 6 weeks) and iOS requirement (12.0 vs 15.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Proportion Solver ships an update every 6 weeks, The Anemometer Attic every 2 days. The most recent releases landed on October 5, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Proportion Solver | The Anemometer Attic |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/proportion-solver/id1532616220/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 2 days** |
| Monetization | Ad-supported | — |
| Size | 47 MB | 30 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Francesco Varotti](https://appshunter.io/developer/1501752853) | [Jessica Parker](https://appshunter.io/developer/1896556215) |

## What reviewers say

### Proportion Solver

[App page](https://appshunter.io/ios/app/proportion-solver/id1532616220)

This app provides step-by-step solutions for mathematical proportions. It's designed for students and math enthusiasts to learn, practice, and simplify calculations with an intuitive interface and theoretical resources.

**Highlights:** Automatic proportion solving with steps, Theory cards for understanding, Advanced math keyboard, Intuitive interface, Integrated learning, Supports all proportion types

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

**In-app purchases:** none


### The Anemometer Attic

[App page](https://appshunter.io/ios/app/the-anemometer-attic/id6768274978)

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

**In-app purchases:** none


## Frequently asked questions

### Is Proportion Solver free?

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

### Is The Anemometer Attic free?

The Anemometer Attic is free to download, with no in-app purchases.

### Do Proportion Solver or The Anemometer Attic have ads?

Proportion Solver shows ads; The Anemometer Attic does not.

### Which is updated more often, Proportion Solver or The Anemometer Attic?

Proportion Solver ships an update every 6 weeks, and The Anemometer Attic every 2 days. Most recently, Proportion Solver was updated on October 5, 2026 and The Anemometer Attic on September 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.*