# Block Stack 16 vs Doku Blast!

The clearest difference is in-app purchases: Doku Blast! at none against Block Stack 16's 3. Doku Blast! also leads on device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price and ads there is nothing between them.

Both are free to download. Block Stack 16 sells 3 one-off in-app purchases. Doku Blast! asks for nothing beyond the download.

## The numbers

| Metric | Block Stack 16 | Doku Blast! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (12 ratings)](https://appshunter.io/ios/app/doku-blast/id6785128983/reviews)** |
| Number of ratings | — | **12** |
| Positive reviews | — | 81.8% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | — | Every 5 days |
| Monetization | — | Ad-supported |
| Size | 4 MB | 162 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Wiz Studio](https://appshunter.io/developer/1436470398) | [WISDOM INTERACTIVE YAZILIM TICARET ANONIM SIRKETI](https://appshunter.io/developer/6785128985) |

## What reviewers say

### Block Stack 16

[App page](https://appshunter.io/ios/app/block-stack-16-bit-puzzle/id6759481143)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Themes | $1.99 | one-time |
| Remove Ads | $1.99 | one-time |
| Bundle (Ads + Themes) | $2.99 | one-time |


### Doku Blast!

[App page](https://appshunter.io/ios/app/doku-blast/id6785128983)

Engage in a vibrant number puzzle game with Sudoku-inspired mechanics. Place blocks strategically to complete boxes and clear the board for higher scores. Enjoy daily challenges and a relaxing, casual brain training experience.

**Highlights:** Colorful Sudoku-inspired gameplay, Simple rules with satisfying strategy, Fun levels and daily challenges, Helpful hints and power-ups, Relaxing, casual puzzle experience, Great for quick sessions

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

**In-app purchases:** none


## Frequently asked questions

### Is Block Stack 16 free?

Block Stack 16 is free to download, with in-app purchases available.

### Is Doku Blast! free?

Doku Blast! is free to download, with no in-app purchases.

### Do Block Stack 16 or Doku Blast! have ads?

Both Block Stack 16 and Doku Blast! 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.*