# Twin Trace vs Cannon Knockdown 3D

The clearest difference is in-app purchases: Cannon Knockdown 3D at none against Twin Trace's 3. Cannon Knockdown 3D also leads on iOS requirement (13.0 vs 17.0). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. Twin Trace sells 3 one-off in-app purchases. Cannon Knockdown 3D asks for nothing beyond the download.

## The numbers

| Metric | Twin Trace | Cannon Knockdown 3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (6 ratings)](https://appshunter.io/ios/app/cannon-knockdown-3d/id6803003358/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Weekly | — |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 7 MB | 917 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [Hiten Soni](https://appshunter.io/developer/6790805196) | [syed hassan abbas naqvi](https://appshunter.io/developer/1893939589) |

## What reviewers say

### Twin Trace

[App page](https://appshunter.io/ios/app/twin-trace/id6790805194)

Connect matching color dots by tracing paths to fill every square on the grid. This relaxing puzzle game offers hundreds of unique levels and daily challenges to test your logic and problem-solving skills.

**Highlights:** Connect matching color dots, Fill every square on the grid, Hundreds of unique levels, Daily puzzles, Hint system, Undo moves, Unlock achievements, Customizable themes

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 500 Points pack | $0.99 | one-time |
| 1200 Points pack | $1.99 | one-time |
| Twin Trace Pro | $1.99 | one-time |


### Cannon Knockdown 3D

[App page](https://appshunter.io/ios/app/cannon-knockdown-3d/id6803003358)

Engage in satisfying physics-based puzzles by aiming and shooting cannonballs to demolish towers and structures. Master hundreds of handcrafted levels with realistic physics and precision, offering a relaxing yet challenging experience for all skill levels.

**Highlights:** Physics-based cannon puzzles, Tower demolition challenges, Realistic physics mechanics, One-touch aim and shoot controls, Hundreds of handcrafted levels, Satisfying chain reactions, Beautiful 3D graphics

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

**In-app purchases:** none


## Frequently asked questions

### Is Twin Trace free?

Twin Trace is free to download, with in-app purchases available.

### Is Cannon Knockdown 3D free?

Cannon Knockdown 3D is free to download, with no in-app purchases.

### Do Twin Trace or Cannon Knockdown 3D have ads?

Both Twin Trace and Cannon Knockdown 3D show ads.

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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.*