# Pythagorus vs Lexicon

The clearest difference is review sentiment: Lexicon at 100% against Pythagorus's 50%. Lexicon also leads on rating (5.0 vs 3.5) and update cadence (every 10 days vs every 34 months). Pythagorus's advantage is device support (3 vs 1) and iOS requirement (8.2 vs 18.6). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

Lexicon holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 50% of Pythagorus's written reviews are positive against 100% of Lexicon's.

Pythagorus ships an update every 34 months, Lexicon every 10 days. The most recent releases landed on September 18, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Pythagorus | Lexicon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (2 ratings)](https://appshunter.io/ios/app/pythagorus/id535182856/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lexicon-visual-dictionary/id6759520591/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 34 months | **Every 10 days** |
| Monetization | Free | Free |
| Size | 1 MB | 10 MB |
| Requires iOS | **8.2** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [hirenkumar patel](https://appshunter.io/developer/393288416) | [Ng Zhong Wei](https://appshunter.io/developer/1874790237) |

## 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


### Lexicon

[App page](https://appshunter.io/ios/app/lexicon-visual-dictionary/id6759520591)

This app helps you build and visualize your vocabulary. It creates beautiful cards for each word, including definitions, origins, pronunciation, memory aids, and relevant photographs. Discover words in real-world contexts and organize your learning.

**Highlights:** Visual word cards, Etymology and pronunciation, Memory hooks, Real-world word sightings, Customizable collections, Daily Word of the Day

**In-app purchases:** none


## Frequently asked questions

### Is Pythagorus free?

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

### Is Lexicon free?

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

### Which has better reviews, Pythagorus or Lexicon?

Lexicon is rated higher. Pythagorus averages 3.5 out of 5 from 2 ratings, while Lexicon averages 5.0 from 1 ratings.

### Do Pythagorus or Lexicon have ads?

Neither Pythagorus nor Lexicon shows ads.

### Which is updated more often, Pythagorus or Lexicon?

Pythagorus ships an update every 34 months, and Lexicon every 10 days. Most recently, Pythagorus was updated on September 18, 2026 and Lexicon on September 27, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*