# Pythagorean Calculator Pro vs Pocket Rigger

The clearest difference is price: Pocket Rigger at Free against Pythagorean Calculator Pro's $1.99. Pythagorean Calculator Pro's advantage is in-app purchases (none vs 1) and iOS requirement (12.0 vs 15.0). On update cadence, ads and device support there is nothing between them.

Pocket Rigger is free to download; Pythagorean Calculator Pro costs $1.99 up front. Pocket Rigger sells 1 one-off in-app purchase. Pythagorean Calculator Pro asks for nothing beyond the download.

Pythagorean Calculator Pro ships an update every 2 months, Pocket Rigger every 6 weeks. Both last shipped on October 30, 2026.

## The numbers

| Metric | Pythagorean Calculator Pro | Pocket Rigger |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.6 (5 ratings)](https://appshunter.io/ios/app/pythagorean-calculator-pro/id6742573225/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Paid | — |
| Size | 32 MB | 104 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [JanoGroup LLC](https://appshunter.io/developer/1781461557) | [Phill Shaw](https://appshunter.io/developer/1713611036) |

## What reviewers say

### Pythagorean Calculator Pro

[App page](https://appshunter.io/ios/app/pythagorean-calculator-pro/id6742573225)

This app provides instant calculations for right triangles and serves as a comprehensive learning guide for the Pythagorean theorem. It includes interactive diagrams, reference guides for special triangles and triples, and real-world examples. It's designed for students, educators, and professionals working with geometry.

**Highlights:** Instant right triangle calculations, Interactive visual explanations, Special right triangle reference, Pythagorean triples list, Offline functionality, Theory and history of the theorem, Real-world applications

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

**In-app purchases:** none


### Pocket Rigger

[App page](https://appshunter.io/ios/app/pocket-rigger/id6744535560)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is Pythagorean Calculator Pro free?

Pythagorean Calculator Pro costs $1.99, with no in-app purchases.

### Is Pocket Rigger free?

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

### Do Pythagorean Calculator Pro or Pocket Rigger have ads?

Both Pythagorean Calculator Pro and Pocket Rigger show ads.

### Which is updated more often, Pythagorean Calculator Pro or Pocket Rigger?

Pythagorean Calculator Pro ships an update every 2 months, and Pocket Rigger every 6 weeks. Most recently, Pythagorean Calculator Pro was updated on October 30, 2026 and Pocket Rigger on October 30, 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.*