# Block Master 3D vs Shape Theory

The clearest difference is in-app purchases: Block Master 3D at none against Shape Theory's 3. Block Master 3D also leads on ads (none vs shown) and iOS requirement (13.0 vs 18.6). Shape Theory's advantage is update cadence (every 3 weeks vs every 67 months). On price and device support there is nothing between them.

Both are free to download. Shape Theory sells 3 in-app purchases, starting at $0.99 per month. Block Master 3D asks for nothing beyond the download.

Block Master 3D ships an update every 67 months, Shape Theory every 3 weeks. The most recent releases landed on October 2, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Block Master 3D | Shape Theory |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 67 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 55 MB | 13 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [App Swim LLC](https://appshunter.io/developer/1475582966) | [Bulltech](https://appshunter.io/developer/1586482702) |

## What reviewers say

### Block Master 3D

[App page](https://appshunter.io/ios/app/block-master-3d/id1527561565)

**Features:** macOS Compatibility

**In-app purchases:** none


### Shape Theory

[App page](https://appshunter.io/ios/app/shape-theory-brain-puzzles/id6449924079)

Uncover hidden geometric shapes by strategically revealing parts of a concealed form. Deduce the correct shape from a list of suspects to advance through increasingly challenging levels. Compete globally for the top leaderboard spot.

**Highlights:** Shape discovery through limited reveals, Strategic deduction of hidden forms, Progressive difficulty levels, Minimalist, captivating graphics, Global leaderboard competition, Brain teaser and strategy gameplay

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads For 1 Month | $0.99 | per month |
| No Ads For 1 Year | $4.99 | per year |
| No Ads Forever | $8.99 | one-time |


## Frequently asked questions

### Is Block Master 3D free?

Block Master 3D is free to download, with no in-app purchases.

### Is Shape Theory free?

Shape Theory is free to download, with in-app purchases available.

### Do Block Master 3D or Shape Theory have ads?

Shape Theory shows ads; Block Master 3D does not.

### Which is updated more often, Block Master 3D or Shape Theory?

Block Master 3D ships an update every 67 months, and Shape Theory every 3 weeks. Most recently, Block Master 3D was updated on October 2, 2026 and Shape Theory on October 12, 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.*