# Knock, knock, knock! vs Goboken e

The clearest difference is price: Goboken e at Free against Knock, knock, knock!'s $2.99. Knock, knock, knock!'s advantage is device support and iOS requirement (9.3 vs 12.1). On in-app purchases there is nothing between them.

Goboken e is free to download; Knock, knock, knock! costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Knock, knock, knock! | Goboken e |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 48 months | — |
| Monetization | Paid | — |
| Size | 121 MB | 31 MB |
| Requires iOS | **9.3** | 12.1 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Alfabeta](https://appshunter.io/developer/586381859) | [Sandviks AS](https://appshunter.io/developer/401129911) |

## What reviewers say

### Knock, knock, knock!

[App page](https://appshunter.io/ios/app/knock-knock-knock/id586381856)

This interactive book app brings a classic children's story to life with engaging page-turning and the ability to record your own narration. It's designed for young children to enjoy a beloved tale in a new digital format.

**Highlights:** Interactive page turning, Recordable narration, Multiple language options, Classic children's story, Designed for toddlers

**In-app purchases:** none


### Goboken e

[App page](https://appshunter.io/ios/app/goboken-e-bker/id1596092141)

**In-app purchases:** none


## Frequently asked questions

### Is Knock, knock, knock! free?

Knock, knock, knock! costs $2.99, with no in-app purchases.

### Is Goboken e free?

Goboken e is free to download, with no in-app purchases.

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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.*