# Slitherlink vs Pythagoras Interactive

The clearest difference is price: Pythagoras Interactive at Free against Slitherlink's $0.99. Pythagoras Interactive also leads on rating (5.0 vs 3.3) and ads (none vs shown). Slitherlink's advantage is ratings volume (3 vs 1) and iOS requirement (9.0 vs 16.0). On in-app purchases and device support there is nothing between them.

Pythagoras Interactive is free to download; Slitherlink costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Pythagoras Interactive holds the better App Store score, 5.0 against 3.3. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

Slitherlink ships an update monthly, Pythagoras Interactive every 2 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | Slitherlink | Pythagoras Interactive |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [3.3 (3 ratings)](https://appshunter.io/ios/app/slitherlink-pro/id1552897483/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pythagoras-interactive/id6466731389/reviews)** |
| Number of ratings | **3** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Paid | **Free** |
| Size | 45 MB | 1 MB |
| Requires iOS | **9.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [其跃 吴](https://appshunter.io/developer/660989470) | [ALAN PETERSON](https://appshunter.io/developer/1436516782) |

## What reviewers say

### Slitherlink

[App page](https://appshunter.io/ios/app/slitherlink-pro/id1552897483)

This is a logical puzzle game where players connect points to form a single loop. Numbers on the board indicate how many lines surround them, guiding players to complete the puzzle. It offers a unique hexagonal grid challenge for brain training.

**Highlights:** Hexagonal grid puzzles, Single loop formation, Number clues for guidance, Logical deduction gameplay, Brain training challenges

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

**In-app purchases:** none


### Pythagoras Interactive

[App page](https://appshunter.io/ios/app/pythagoras-interactive/id6466731389)

Explore the Pythagorean Theorem with an interactive visual tool. Adjust triangle legs to observe real-time changes in square areas and hypotenuse length. Distances are displayed in radical form when necessary.

**Highlights:** Interactive triangle manipulation, Visual representation of squares on sides, Real-time updates to hypotenuse and areas, Radical form for distances, Clear labeling of sides and areas

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

**In-app purchases:** none


## Frequently asked questions

### Is Slitherlink free?

Slitherlink costs $0.99, with no in-app purchases.

### Is Pythagoras Interactive free?

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

### Which has better reviews, Slitherlink or Pythagoras Interactive?

Pythagoras Interactive is rated higher. Slitherlink averages 3.3 out of 5 from 3 ratings, while Pythagoras Interactive averages 5.0 from 1 ratings.

### Do Slitherlink or Pythagoras Interactive have ads?

Slitherlink shows ads; Pythagoras Interactive does not.

### Which is updated more often, Slitherlink or Pythagoras Interactive?

Slitherlink ships an update monthly, and Pythagoras Interactive every 2 weeks. Most recently, Slitherlink was updated on November 3, 2026 and Pythagoras Interactive on November 3, 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.*