# ClearMath vs GetPrincipia

The clearest difference is update cadence: ClearMath at every 5 days against GetPrincipia's every 2 months. GetPrincipia's advantage is iOS requirement (15.1 vs 17). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. ClearMath sells 2 in-app purchases, starting at $12.99 per month and GetPrincipia sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

ClearMath ships an update every 5 days, GetPrincipia every 2 months. The most recent releases landed on October 18, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ClearMath | GetPrincipia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/clearmath/id6670290377/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 15 MB | 38 MB |
| Requires iOS | 17 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kunshan Lefan Software Technology Co.,Ltd.](https://appshunter.io/developer/452703256) | [Axiom 38 LLC](https://appshunter.io/developer/1887968723) |

## What reviewers say

### ClearMath

[App page](https://appshunter.io/ios/app/clearmath/id6670290377)

This app helps you deeply understand mathematical concepts by visualizing their relationships and connections. It offers guided learning paths, detailed explanations, and practical examples to build lasting knowledge beyond just getting answers.

**Highlights:** Concept Relationship Maps, Hierarchical Tree Structure, Comprehensive Concept Explanations, Guided Learning Paths, Progress Tracking, Mathematician Profiles, AI Explanations

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $12.99 | per month |
| Annual | $99.99 | per year |


### GetPrincipia

[App page](https://appshunter.io/ios/app/getprincipia/id6761139348)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $6.99 | per month |
| Annual | $44.99 | per year |


## Frequently asked questions

### Is ClearMath free?

ClearMath is free to download, with in-app purchases available.

### Is GetPrincipia free?

GetPrincipia is free to download, with in-app purchases available.

### Do ClearMath or GetPrincipia have ads?

Neither ClearMath nor GetPrincipia shows ads.

### Which is updated more often, ClearMath or GetPrincipia?

ClearMath ships an update every 5 days, and GetPrincipia every 2 months. Most recently, ClearMath was updated on October 18, 2026 and GetPrincipia on October 31, 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.*