# Reef Defender vs SharkEvolutionRun

The clearest difference is ads: Reef Defender at none against SharkEvolutionRun's shown. SharkEvolutionRun's advantage is update cadence (every 2 days vs every 54 months) and device support (3 vs 1). On price, in-app purchases and iOS requirement there is nothing between them.

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

Reef Defender ships an update every 54 months, SharkEvolutionRun every 2 days. The most recent releases landed on October 3, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Reef Defender | SharkEvolutionRun |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/reef-defender/id657761952/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 54 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 16 MB | 87 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [State of Hawaii](https://appshunter.io/developer/1473057158) | [TILTLABS (OPC) PRIVATE LIMITED](https://appshunter.io/developer/979881416) |

## What reviewers say

### Reef Defender

[App page](https://appshunter.io/ios/app/reef-defender/id657761952)

Explore the connection between land and sea through an engaging game inspired by ancient Hawaiian stewardship practices. Play as a shark and learn how actions on land impact the ocean ecosystem.

**Highlights:** Learn land-sea connection, Ancient Hawaiian stewardship concepts, Play as a shark, Educational gameplay, Ocean ecosystem focus

**Features:** macOS Compatibility

**In-app purchases:** none


### SharkEvolutionRun

[App page](https://appshunter.io/ios/app/sharkevolutionrun/id6478055499)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Reef Defender free?

Reef Defender is free to download, with no in-app purchases.

### Is SharkEvolutionRun free?

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

### Do Reef Defender or SharkEvolutionRun have ads?

SharkEvolutionRun shows ads; Reef Defender does not.

### Which is updated more often, Reef Defender or SharkEvolutionRun?

Reef Defender ships an update every 54 months, and SharkEvolutionRun every 2 days. Most recently, Reef Defender was updated on October 3, 2026 and SharkEvolutionRun on October 10, 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.*