# Reef Defender vs WikiSplash

The clearest difference is price: Reef Defender at Free against WikiSplash's $1.99. WikiSplash's advantage is device support (3 vs 1). On update cadence, ads, in-app purchases and iOS requirement there is nothing between them.

Reef Defender is free to download; WikiSplash costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Reef Defender ships an update every 54 months, WikiSplash every 60 months. The most recent releases landed on June 10, 2026 and January 16, 2026 respectively.

## The numbers

| Metric | Reef Defender | WikiSplash |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| 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 | No |
| Update frequency | **Every 54 months** | Every 60 months |
| Monetization | Free | — |
| Size | 16 MB | 98 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [State of Hawaii](https://appshunter.io/developer/1473057158) | [Twofish Kft.](https://appshunter.io/developer/330159160) |

## 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


### WikiSplash

[App page](https://appshunter.io/ios/app/wikisplash/id971795536)

**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 WikiSplash free?

WikiSplash costs $1.99, with no in-app purchases.

### Do Reef Defender or WikiSplash have ads?

Neither Reef Defender nor WikiSplash shows ads.

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

Reef Defender ships an update every 54 months, and WikiSplash every 60 months. Most recently, Reef Defender was updated on June 10, 2026 and WikiSplash on January 16, 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.*