Reef Defender vs Spear Chain
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Reef Defender
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.
- Learn land-sea connection
- Ancient Hawaiian stewardship concepts
- Play as a shark
- Educational gameplay
- Ocean ecosystem focus
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The ancient Hawaiians knew that what happens on land affects the ocean, so they used a system of land and sea stewardship involving the entire ahupua’a (watershed) from land to sea. You can learn about the connection of land and sea by playing the game Reef Defender. The good guy in Reef Defender is the shark.
Spear Chain
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Embark on an adventure where your chain spear becomes the key to vanquishing foes and uncovering ancient secrets.
Screenshots
Verdict
The clearest difference is ads: Reef Defender at none against Spear Chain's shown. Spear Chain's advantage is update cadence (daily vs every 54 months) and device support (3 vs 1). On price, in-app purchases and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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, Spear Chain daily. The most recent releases landed on October 3, 2026 and September 25, 2026 respectively.
| Parameter | Reef Defender | Spear Chain |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 54 months | Daily — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 16 MB | 135 MB |
| Age rating | 4+ | 17+ |
| Developer | State of Hawaii | Ali Said Yuksel |
In-app purchases
Reef Defender
No in-app purchases
Spear Chain
No in-app purchases
Questions
Is Reef Defender free?
Is Spear Chain free?
Do Reef Defender or Spear Chain have ads?
Which is updated more often, Reef Defender or Spear Chain?
Other comparisons
