# Crazy Sharky vs Bitcoin Puzzle

The clearest difference is ads: Crazy Sharky at none against Bitcoin Puzzle's shown. Crazy Sharky also leads on iOS requirement (12.1 vs 15.1). Bitcoin Puzzle's advantage is update cadence (every 4 days vs every 5 weeks). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Crazy Sharky ships an update every 5 weeks, Bitcoin Puzzle every 4 days. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Crazy Sharky | Bitcoin Puzzle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bitcoin-puzzle/id6736991533/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Every 4 days** |
| Monetization | — | Ad-supported |
| Size | 114 MB | 36 MB |
| Requires iOS | **12.1** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Opincur s.r.o.](https://appshunter.io/developer/1602286801) | [AUS DEV](https://appshunter.io/developer/1760156392) |

## What reviewers say

### Crazy Sharky

[App page](https://appshunter.io/ios/app/crazy-sharky/id6446233937)

**Features:** macOS Compatibility

**In-app purchases:** none


### Bitcoin Puzzle

[App page](https://appshunter.io/ios/app/bitcoin-puzzle/id6736991533)

Explore cryptography and Bitcoin by generating and testing private keys against community-funded addresses. This app automates the process, offering a chance to unlock real Bitcoin rewards with minimal effort.

**Highlights:** Automated private key generation, Testing keys against funded Bitcoin addresses, Community-funded Bitcoin rewards, Secure and private participation, Innovative key generation algorithm

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Crazy Sharky free?

Crazy Sharky is free to download, with no in-app purchases.

### Is Bitcoin Puzzle free?

Bitcoin Puzzle is free to download, with no in-app purchases.

### Do Crazy Sharky or Bitcoin Puzzle have ads?

Bitcoin Puzzle shows ads; Crazy Sharky does not.

### Which is updated more often, Crazy Sharky or Bitcoin Puzzle?

Crazy Sharky ships an update every 5 weeks, and Bitcoin Puzzle every 4 days. Most recently, Crazy Sharky was updated on November 3, 2026 and Bitcoin Puzzle on November 4, 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.*