# DunkTank 3D vs 6book

The clearest difference is in-app purchases: DunkTank 3D at none against 6book's 1. DunkTank 3D also leads on iOS requirement (10.3 vs 18.5). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 6book sells 1 one-off in-app purchase. DunkTank 3D asks for nothing beyond the download.

DunkTank 3D ships an update every 3 weeks, 6book every 10 days. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | DunkTank 3D | 6book |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/dunktank-3d/id1567969966/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Monetization | Ad-supported | — |
| Size | 194 MB | 4 MB |
| Requires iOS | **10.3** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Kerry Blue Software Inc.](https://appshunter.io/developer/921384454) | [Thibault Delimard](https://appshunter.io/developer/1597795805) |

## What reviewers say

### DunkTank 3D

[App page](https://appshunter.io/ios/app/dunktank-3d/id1567969966)

Engage in a fun, casual ball-throwing game with target practice and robot-fighting action. Defeat enemies by hitting targets to make them fall into a water tank. Enjoy unlimited, offline gameplay designed for all ages.

**Highlights:** Simple and fun gameplay, Unlimited gameplay, Ball throwing target practice, Robot fighting action, Offline play, Suitable for all ages

**Features:** macOS Compatibility

**In-app purchases:** none


### 6book

[App page](https://appshunter.io/ios/app/6book/id1671613650)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock | $0.99 | one-time |


## Frequently asked questions

### Is DunkTank 3D free?

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

### Is 6book free?

6book is free to download, with in-app purchases available.

### Do DunkTank 3D or 6book have ads?

Both DunkTank 3D and 6book show ads.

### Which is updated more often, DunkTank 3D or 6book?

DunkTank 3D ships an update every 3 weeks, and 6book every 10 days. Most recently, DunkTank 3D was updated on November 3, 2026 and 6book on October 27, 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.*