# Pythagorus vs Weld Handbook

The clearest difference is price: Pythagorus at Free against Weld Handbook's $2.99. Pythagorus also leads on iOS requirement (8.2 vs 17.0). Weld Handbook's advantage is update cadence (fortnightly vs every 34 months). On ads, in-app purchases and device support there is nothing between them.

Pythagorus is free to download; Weld Handbook costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Pythagorus ships an update every 34 months, Weld Handbook fortnightly. The most recent releases landed on September 18, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Pythagorus | Weld Handbook |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[3.5 (2 ratings)](https://appshunter.io/ios/app/pythagorus/id535182856/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 34 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 1 MB | 1.4 GB |
| Requires iOS | **8.2** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [hirenkumar patel](https://appshunter.io/developer/393288416) | [James Scott](https://appshunter.io/developer/1544557425) |

## What reviewers say

### Pythagorus

[App page](https://appshunter.io/ios/app/pythagorus/id535182856)

Calculate and visualize triangle sides and angles in real-time. Explore various options to find and draw different triangle configurations.

**Highlights:** Calculate remaining sides and angles, Real-time drawing of triangles, Multiple calculation options, Interactive triangle visualization

**Features:** macOS Compatibility

**In-app purchases:** none


### Weld Handbook

[App page](https://appshunter.io/ios/app/weld-handbook/id6472604721)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Pythagorus free?

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

### Is Weld Handbook free?

Weld Handbook costs $2.99, with no in-app purchases.

### Do Pythagorus or Weld Handbook have ads?

Neither Pythagorus nor Weld Handbook shows ads.

### Which is updated more often, Pythagorus or Weld Handbook?

Pythagorus ships an update every 34 months, and Weld Handbook fortnightly. Most recently, Pythagorus was updated on September 18, 2026 and Weld Handbook on September 29, 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.*