# PolygoLines vs SudokuE

The clearest difference is price: PolygoLines at Free against SudokuE's $1.99. SudokuE's advantage is ads (none vs shown). On update cadence, in-app purchases, device support and iOS requirement there is nothing between them.

PolygoLines is free to download; SudokuE costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

PolygoLines ships an update every 6 months, SudokuE every 8 months. The most recent releases landed on October 14, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | PolygoLines | SudokuE |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sudokue/id6502456402/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 6 months** | Every 8 months |
| Monetization | — | Paid |
| Size | 165 MB | 44 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pavel Kulakov](https://appshunter.io/developer/653642305) | [胜前 刘](https://appshunter.io/developer/1715967286) |

## What reviewers say

### PolygoLines

[App page](https://appshunter.io/ios/app/polygolines/id6448698159)

**In-app purchases:** none


### SudokuE

[App page](https://appshunter.io/ios/app/sudokue/id6502456402)

A classic number puzzle game that challenges logical thinking with a 9x9 grid. Offers multiple difficulty levels and an intuitive generator for unique, solvable puzzles. Features include pencil marks and note-taking for strategic play.

**Highlights:** Classic 9x9 grid gameplay, Multiple difficulty levels, Intuitive puzzle generator, Pencil mark feature, Note-taking options, User-friendly interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PolygoLines free?

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

### Is SudokuE free?

SudokuE costs $1.99, with no in-app purchases.

### Do PolygoLines or SudokuE have ads?

PolygoLines shows ads; SudokuE does not.

### Which is updated more often, PolygoLines or SudokuE?

PolygoLines ships an update every 6 months, and SudokuE every 8 months. Most recently, PolygoLines was updated on October 14, 2026 and SudokuE on October 11, 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.*