# CALC~blocks vs Tangram Shape Puzzle 3D

The clearest difference is rating: Tangram Shape Puzzle 3D at 4.7 against CALC~blocks's 4.0. Tangram Shape Puzzle 3D also leads on ratings volume (34 vs 4). CALC~blocks's advantage is iOS requirement (9.0 vs 12.0). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Tangram Shape Puzzle 3D holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: Tangram Shape Puzzle 3D has 34 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 65% of CALC~blocks's written reviews are positive against 64% of Tangram Shape Puzzle 3D's, so the app with the better star average is not the one people write more warmly about.

CALC~blocks ships an update every 3 weeks, Tangram Shape Puzzle 3D every 4 weeks. The most recent releases landed on October 21, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | CALC~blocks | Tangram Shape Puzzle 3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/calcblocks/id1229303760/reviews) | **[4.7 (34 ratings)](https://appshunter.io/ios/app/tangram-shape-puzzle-3d/id1462000232/reviews)** |
| Number of ratings | 4 | **34** |
| Positive reviews | **65.4% of reviews** | 64.3% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Every 4 weeks |
| Monetization | Ad-supported | Ad-supported |
| Size | 31 MB | 74 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [QQ TSUBASA](https://appshunter.io/developer/568750169) | [Keitaro Ohno](https://appshunter.io/developer/1202540366) |

## What reviewers say

### CALC~blocks

[App page](https://appshunter.io/ios/app/calcblocks/id1229303760)

A block math puzzle game where you calculate math results to clear blocks, similar to Tetris. Aim for combos and higher scores by clearing blocks quickly and correctly. Enjoy different difficulty levels and play offline.

**Highlights:** Block math puzzle gameplay, Calculate math results to clear blocks, Combo shots for higher scores, Multiple difficulty levels, Offline play supported, Visual effects

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

**In-app purchases:** none


### Tangram Shape Puzzle 3D

[App page](https://appshunter.io/ios/app/tangram-shape-puzzle-3d/id1462000232)

This 3D block puzzle game challenges you to fill all the blanks using provided shapes. Swipe to rotate blocks and solve increasingly complex spatial arrangements. It's a simple yet effective way to train your brain.

**Highlights:** 3D block puzzle gameplay, Fill blank spaces with blocks, Swipe to rotate blocks, Brain training exercises, Simple rules

**In-app purchases:** none


## Frequently asked questions

### Is CALC~blocks free?

CALC~blocks is free to download, with no in-app purchases.

### Is Tangram Shape Puzzle 3D free?

Tangram Shape Puzzle 3D is free to download, with no in-app purchases.

### Which has better reviews, CALC~blocks or Tangram Shape Puzzle 3D?

Tangram Shape Puzzle 3D is rated higher. CALC~blocks averages 4.0 out of 5 from 4 ratings, while Tangram Shape Puzzle 3D averages 4.7 from 34 ratings.

### Do CALC~blocks or Tangram Shape Puzzle 3D have ads?

Both CALC~blocks and Tangram Shape Puzzle 3D show ads.

### Which is updated more often, CALC~blocks or Tangram Shape Puzzle 3D?

CALC~blocks ships an update every 3 weeks, and Tangram Shape Puzzle 3D every 4 weeks. Most recently, CALC~blocks was updated on October 21, 2026 and Tangram Shape Puzzle 3D on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*