# X Lines vs Planar Knots

The clearest difference is ads: X Lines at none against Planar Knots's shown. X Lines also leads on monetization model (free vs free with in-app purchases) and iOS requirement (9.0 vs 15.0). Planar Knots's advantage is update cadence (every 3 days vs every 6 days). On price, rating, ratings volume and in-app purchases there is nothing between them.

Both are free to download. X Lines sells 1 one-off in-app purchase and Planar Knots sells 8 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for X Lines against 5.0 for Planar Knots. Both are backed by a comparable volume of ratings — 2 and 4 respectively.

X Lines ships an update every 6 days, Planar Knots every 3 days. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | X Lines | Planar Knots |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/x-lines/id1387718873/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/planar-knots/id6757313769/reviews) |
| Number of ratings | 2 | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 days | **Every 3 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 11 MB | 171 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [景灯 梁](https://appshunter.io/developer/977915723) | [Orange Peak Studios](https://appshunter.io/developer/1865981968) |

## What reviewers say

### X Lines

[App page](https://appshunter.io/ios/app/x-lines/id1387718873)

This puzzle game challenges your geometric thinking and reasoning skills. Uncross lines by moving nodes to create a clear path. It offers over 200 levels with more planned, suitable for all ages.

**Highlights:** Geometric thinking puzzles, Over 200 levels, Clean UI design, Reasoning and creativity challenges, Supports iPhone and iPad, Suitable for all ages

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ads removal | $2.99 | one-time |


### Planar Knots

[App page](https://appshunter.io/ios/app/planar-knots/id6757313769)

Untangle complex line diagrams by strategically moving nodes to eliminate intersections. Earn stars by solving puzzles efficiently and maintain your daily challenge streak. Customize your experience with unlockable themes and track your progress.

**Highlights:** Untangle puzzles by moving nodes, Optimize solutions for more stars, Daily Challenge with streak tracking, Points system for unlocks, Stats and progress tracking, Share progress with friends, Customizable themes

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Neon Night Theme | $0.99 | one-time |
| Unlock Groovy Theme | $0.99 | one-time |
| Unlock Pixelated Theme | $0.99 | one-time |
| Unlock Candyland Theme | $0.99 | one-time |
| Unlock Workshop Theme | $0.99 | one-time |
| Remove Ads | $2.99 | one-time |
| Unlock All Themes | $2.99 | one-time |
| Remove Ads / Unlock Themes Bundle | $4.99 | one-time |


## Frequently asked questions

### Is X Lines free?

X Lines is free to download, with in-app purchases available.

### Is Planar Knots free?

Planar Knots is free to download, with in-app purchases available.

### Which has better reviews, X Lines or Planar Knots?

X Lines and Planar Knots are both rated 5.0 out of 5 on the App Store, from 2 and 4 ratings respectively.

### Do X Lines or Planar Knots have ads?

Planar Knots shows ads; X Lines does not.

### Which is updated more often, X Lines or Planar Knots?

X Lines ships an update every 6 days, and Planar Knots every 3 days. Most recently, X Lines was updated on November 2, 2026 and Planar Knots on November 5, 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.*