# Planar Knots vs Memory Numbers Sequence

The clearest difference is in-app purchases: Memory Numbers Sequence at none against Planar Knots's 8. Memory Numbers Sequence also leads on ads (none vs shown). Planar Knots's advantage is update cadence (every 3 days vs every 4 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Planar Knots sells 8 one-off in-app purchases. Memory Numbers Sequence asks for nothing beyond the download.

Planar Knots ships an update every 3 days, Memory Numbers Sequence every 4 months. The most recent releases landed on October 16, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Planar Knots | Memory Numbers Sequence |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/planar-knots/id6757313769/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 171 MB | 11 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Orange Peak Studios](https://appshunter.io/developer/1865981968) | [Igor Khomiakov](https://appshunter.io/developer/1864734060) |

## What reviewers say

### 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 |


### Memory Numbers Sequence

[App page](https://appshunter.io/ios/app/memory-numbers-sequence/id6757886984)

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

**In-app purchases:** none


## Frequently asked questions

### Is Planar Knots free?

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

### Is Memory Numbers Sequence free?

Memory Numbers Sequence is free to download, with no in-app purchases.

### Do Planar Knots or Memory Numbers Sequence have ads?

Planar Knots shows ads; Memory Numbers Sequence does not.

### Which is updated more often, Planar Knots or Memory Numbers Sequence?

Planar Knots ships an update every 3 days, and Memory Numbers Sequence every 4 months. Most recently, Planar Knots was updated on October 16, 2026 and Memory Numbers Sequence on October 23, 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.*