# iSometric 3D Form vs Tangram King

The clearest difference is rating: Tangram King at 4.6 against iSometric 3D Form's 3.2. Tangram King also leads on review sentiment (89% vs 56%) and ratings volume (154 vs 6). iSometric 3D Form's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Tangram King sells 1 one-off in-app purchase. iSometric 3D Form asks for nothing beyond the download.

Tangram King holds the better App Store score, 4.6 against 3.2. That said, the two scores are not equally well evidenced: Tangram King has 154 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 56% of iSometric 3D Form's written reviews are positive against 89% of Tangram King's.

iSometric 3D Form ships an update monthly, Tangram King every 4 months. The most recent releases landed on October 15, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | iSometric 3D Form | Tangram King |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.2 (6 ratings)](https://appshunter.io/ios/app/isometric-3d-form/id1080191573/reviews) | **[4.6 (154 ratings)](https://appshunter.io/ios/app/tangram-king/id1124017784/reviews)** |
| Number of ratings | 6 | **154** |
| Positive reviews | 56.3% of reviews | **88.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 4 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 279 MB | 43 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jose Luis Lopez Alcazar](https://appshunter.io/developer/629942984) | [MOBIRIX](https://appshunter.io/developer/349276666) |

## What reviewers say

### iSometric 3D Form

[App page](https://appshunter.io/ios/app/isometric-3d-form/id1080191573)

This game challenges players to assemble 3D geometric shapes by correctly aligning front, left, and top views. It offers numerous levels with increasing difficulty, requiring careful observation to form the isometric figures.

**Highlights:** Multiple difficulty levels, Form 3D figures, Use front, left, and top views, Hidden line challenges, All levels are free

**Features:** macOS Compatibility

**In-app purchases:** none


### Tangram King

[App page](https://appshunter.io/ios/app/tangram-king/id1124017784)

Engage your mind with a classic puzzle game where you arrange seven geometric shapes to complete intricate patterns. Explore multiple game modes and challenge yourself with countless stages, offering hours of engaging gameplay. Compete with friends or players worldwide through various online features.

**Highlights:** 7 geometric pieces for puzzles, Multiple game modes (classic, double, flip, spinning, hard), Countless stages for extended play, 1v1 versus multiplayer mode, Leaderboard and achievement support, Supports 16 languages

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hint Item Purchase | $2.99 | one-time |

**What reviewers like**

- 👍 Fun and entertaining
- 🧠 Good for brain exercise
- 👨‍👩‍👧‍👦 Suitable for children
- 😌 Relaxing and calming
- 💡 Many puzzles/levels

**What reviewers complain about**

- 😠 Too many ads
- 🐛 Pieces don't always fit perfectly
- 🐛 Game doesn't always recognize solved puzzles
- 🐛 Pieces are given in the correct direction (too easy)
- 🐛 Lack of rotation for pieces

**Reported bugs**

- Pieces not perfectly aligned
- Game not recognizing solved puzzles
- Ads blocking gameplay
- Sensitivity issues with piece placement
- Game progress reset

**Requested features**

- Paid version to remove ads
- Option to rotate pieces
- More challenging levels
- Improve piece fitting sensitivity
- Add more game modes


## Frequently asked questions

### Is iSometric 3D Form free?

iSometric 3D Form is free to download, with no in-app purchases.

### Is Tangram King free?

Tangram King is free to download, with in-app purchases available.

### Which has better reviews, iSometric 3D Form or Tangram King?

Tangram King is rated higher. iSometric 3D Form averages 3.2 out of 5 from 6 ratings, while Tangram King averages 4.6 from 154 ratings.

### Do iSometric 3D Form or Tangram King have ads?

Tangram King shows ads; iSometric 3D Form does not.

### Which is updated more often, iSometric 3D Form or Tangram King?

iSometric 3D Form ships an update monthly, and Tangram King every 4 months. Most recently, iSometric 3D Form was updated on October 15, 2026 and Tangram King on October 26, 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.*