# Line Puzzle vs impossible MATH

Line Puzzle and impossible MATH are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Line Puzzle sells 11 one-off in-app purchases and impossible MATH sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Line Puzzle ships an update fortnightly, impossible MATH every 9 days. The most recent releases landed on October 1, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Line Puzzle | impossible MATH |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (12K ratings)](https://appshunter.io/ios/app/line-puzzle-string-art/id1433103489/reviews)** | — |
| Number of ratings | **12K** | — |
| Positive reviews | 70.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Fortnightly | **Every 9 days** |
| Monetization | Free with in-app purchases | — |
| Size | 191 MB | 133 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [BitMango, Inc.](https://appshunter.io/developer/465882936) | [Liquid Mutiny LLC](https://appshunter.io/developer/1810322411) |

## What reviewers say

### Line Puzzle

[App page](https://appshunter.io/ios/app/line-puzzle-string-art/id1433103489)

Connect and weave lines to create intricate string art designs. This relaxing puzzle game offers hundreds of unique levels with stunning visuals and soothing sounds. Play at your own pace with no time limits or penalties.

**Highlights:** Drag and connect lines, Create string art shapes, Hundreds of unique levels, No Wi-Fi needed, No time limits or penalties, Stunning graphics and sounds

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 Hints | $0.99 | one-time |
| Adfree | $1.99 | one-time |
| Starter Package | $1.99 | one-time |
| Christmas Package | $2.99 | one-time |
| Oak Art | $3.99 | one-time |
| Acacia Art | $3.99 | one-time |
| Spruce Art | $3.99 | one-time |
| 55 Hints | $4.99 | one-time |
| Birch Package | $4.99 | one-time |
| 110 Hints | $9.99 | one-time |
| Hallerbos | $9.99 | one-time |

**What reviewers like**

- 🚀 Engaging and relaxing gameplay
- 👍 Fun and challenging puzzles
- 👍 Helpful hint system
- 👍 Visually appealing string art

**What reviewers complain about**

- 🔍 Too many ads interrupting gameplay
- 🔍 Ads too frequent, even in paid version
- 🔍 Difficulty progression too slow
- 🐛 Occasional bugs and crashes

**Reported bugs**

- Hint button too close to reset button
- Puzzle progress not saved after app crashes
- Ads sometimes cover UI, preventing interaction

**Requested features**

- More challenging and varied puzzles
- Option to start at higher difficulty levels
- Ability to replay completed puzzles
- Improved ad-free experience


### impossible MATH

[App page](https://appshunter.io/ios/app/impossible-math/id6744987818)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is Line Puzzle free?

Line Puzzle is free to download, with in-app purchases available.

### Is impossible MATH free?

impossible MATH is free to download, with in-app purchases available.

### Do Line Puzzle or impossible MATH have ads?

Both Line Puzzle and impossible MATH show ads.

### Which is updated more often, Line Puzzle or impossible MATH?

Line Puzzle ships an update fortnightly, and impossible MATH every 9 days. Most recently, Line Puzzle was updated on October 1, 2026 and impossible MATH on September 20, 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.*