# Flip Coin Master vs Knuckle

The clearest difference is in-app purchases: Flip Coin Master at none against Knuckle's 1. Flip Coin Master also leads on iOS requirement (15.0 vs 26.0). Knuckle's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Knuckle sells 1 one-off in-app purchase. Flip Coin Master asks for nothing beyond the download.

## The numbers

| Metric | Flip Coin Master | Knuckle |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 days | — |
| Size | 69 MB | 12 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ricardo Gibran Ramos Navarro](https://appshunter.io/developer/1889402739) | [Andrii Bashta](https://appshunter.io/developer/1547467775) |

## What reviewers say

### Flip Coin Master

[App page](https://appshunter.io/ios/app/flip-coin-master/id6761403004)

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

**In-app purchases:** none


### Knuckle

[App page](https://appshunter.io/ios/app/knuckle-ring-sizer/id6780806994)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Knuckle Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is Flip Coin Master free?

Flip Coin Master is free to download, with no in-app purchases.

### Is Knuckle free?

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

### Do Flip Coin Master or Knuckle have ads?

Flip Coin Master shows ads; Knuckle does not.

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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.*