# Kolf vs boop.

The clearest difference is iOS requirement: Kolf at 12.0 against boop.'s 15.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Kolf sells 1 one-off in-app purchase and boop. sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Kolf | boop. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (7 ratings)](https://appshunter.io/ios/app/boop/id6479205625/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | — | Every 3 days |
| Monetization | — | Free with in-app purchases |
| Size | 126 MB | 35 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ciro Manna](https://appshunter.io/developer/1461361803) | [Joshua Shadik](https://appshunter.io/developer/1735161678) |

## What reviewers say

### Kolf

[App page](https://appshunter.io/ios/app/kolf/id1617580386)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kolf - No More Ads | $1.99 | one-time |


### boop.

[App page](https://appshunter.io/ios/app/boop/id6479205625)

A minimalist puzzle game where you slide blocks to reach a goal. Features 50 challenging levels with unique jelly block physics. Offers both light and dark modes that adapt to your device.

**Highlights:** 50 challenging levels, Jelly block physics, Light and dark modes, Slide-to-move gameplay, Goal-oriented puzzles

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Expanded Undo | $0.99 | one-time |
| 15 Hints | $0.99 | one-time |
| 50 Hints | $1.99 | one-time |
| 100 Hints | $2.99 | one-time |


## Frequently asked questions

### Is Kolf free?

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

### Is boop. free?

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

### Do Kolf or boop. have ads?

Both Kolf and boop. 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.*