# ProblemScape vs Theory Forge

The clearest difference is iOS requirement: ProblemScape at 11.0 against Theory Forge's 15.0. On price, ads, in-app purchases and monetization model there is nothing between them.

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

## The numbers

| Metric | ProblemScape | Theory Forge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/theory-forge/id6762159961/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Monetization | Free | Free |
| Size | 324 MB | 18 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPad, Mac | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [RoundEd Learning Inc.](https://appshunter.io/developer/1456312891) | [DANIEL WADE IVERS](https://appshunter.io/developer/1893173294) |

## What reviewers say

### ProblemScape

[App page](https://appshunter.io/ios/app/problemscape-value-of-xperts/id1456312892)

Embark on a 3D adventure in a city where math experts have vanished. Solve algebra problems to help the inhabitants and find your lost sibling. The game features engaging narrative, videos, practice, and assessments to build math efficacy.

**Highlights:** 3D adventure gameplay, Algebraic concept learning, Interactive videos and animations, Worked examples and practice, Assessments for each concept, Narrative-driven learning

**In-app purchases:** none


### Theory Forge

[App page](https://appshunter.io/ios/app/theory-forge/id6762159961)

This app offers focused repetition drills to help musicians of all levels master music theory fundamentals. It covers intervals, scales, chords, and staff reading with progress tracking and achievement badges.

**Highlights:** Interval drills, Scale identification, Triad construction, Staff reading practice, Speed and mixed drills, Progress tracking, Achievement badges

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ProblemScape free?

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

### Is Theory Forge free?

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

### Do ProblemScape or Theory Forge have ads?

Neither ProblemScape nor Theory Forge shows ads.

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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.*