# Muvin vs Proportion Solver

The clearest difference is ads: Muvin at none against Proportion Solver's shown. Muvin also leads on iOS requirement (13.0 vs 15.0). Proportion Solver's advantage is update cadence (every 6 weeks vs every 4 months). 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.

Muvin ships an update every 4 months, Proportion Solver every 6 weeks. The most recent releases landed on September 15, 2026 and September 3, 2026 respectively.

## The numbers

| Metric | Muvin | Proportion Solver |
| --- | --- | --- |
| 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 | **No** | Yes |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | — | Ad-supported |
| Size | 21 MB | 47 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [DEMUX S.A.S.](https://appshunter.io/developer/1417640835) | [Francesco Varotti](https://appshunter.io/developer/1501752853) |

## What reviewers say

### Muvin

[App page](https://appshunter.io/ios/app/muvin/id1357171887)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Muvin free?

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

### Is Proportion Solver free?

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

### Do Muvin or Proportion Solver have ads?

Proportion Solver shows ads; Muvin does not.

### Which is updated more often, Muvin or Proportion Solver?

Muvin ships an update every 4 months, and Proportion Solver every 6 weeks. Most recently, Muvin was updated on September 15, 2026 and Proportion Solver on September 3, 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.*