# Proportion Solver vs lehramt.app

The clearest difference is ads: lehramt.app at none against Proportion Solver's shown. Proportion Solver's advantage is update cadence (every 6 weeks vs every 25 months). On price, in-app purchases, device support and iOS requirement 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, lehramt.app every 25 months. The most recent releases landed on September 3, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Proportion Solver | lehramt.app |
| --- | --- | --- |
| 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 25 months |
| Monetization | Ad-supported | — |
| Size | 47 MB | 5 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Francesco Varotti](https://appshunter.io/developer/1501752853) | [LBZ Lehrerberatungszentrum Baden-Wurttemberg GmbH](https://appshunter.io/developer/1646608581) |

## 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


### lehramt.app

[App page](https://appshunter.io/ios/app/lehramtapp/id6443501440)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Proportion Solver free?

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

### Is lehramt.app free?

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

### Do Proportion Solver or lehramt.app have ads?

Proportion Solver shows ads; lehramt.app does not.

### Which is updated more often, Proportion Solver or lehramt.app?

Proportion Solver ships an update every 6 weeks, and lehramt.app every 25 months. Most recently, Proportion Solver was updated on September 3, 2026 and lehramt.app on September 23, 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.*