# GetPrincipia vs MathifyX

The clearest difference is in-app purchases: MathifyX at none against GetPrincipia's 2. MathifyX also leads on update cadence (daily vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. GetPrincipia sells 2 in-app purchases, starting at $6.99 per month. MathifyX asks for nothing beyond the download.

GetPrincipia ships an update every 2 months, MathifyX daily. Both last shipped on October 31, 2026.

## The numbers

| Metric | GetPrincipia | MathifyX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mathifyx/id6761733930/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Daily** |
| Monetization | — | Free |
| Size | 38 MB | 5 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Axiom 38 LLC](https://appshunter.io/developer/1887968723) | [MARIA SHEININ](https://appshunter.io/developer/1891158704) |

## What reviewers say

### 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 |


### MathifyX

[App page](https://appshunter.io/ios/app/mathifyx/id6761733930)

This app makes learning math interactive and fun for everyone. It helps users study, prepare, and master any math-related topic. The goal is to provide an engaging educational experience.

**Highlights:** Interactive learning, Math mastery, Study preparation, Fun educational experience, All math topics

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

**In-app purchases:** none


## Frequently asked questions

### Is GetPrincipia free?

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

### Is MathifyX free?

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

### Do GetPrincipia or MathifyX have ads?

Neither GetPrincipia nor MathifyX shows ads.

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

GetPrincipia ships an update every 2 months, and MathifyX daily. Most recently, GetPrincipia was updated on October 31, 2026 and MathifyX 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.*