Rock Zapper vs Defender Reborn
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Rock Zapper
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Play the asteroid vintage game with cool sounds and vintage graphics.
Defender Reborn
Defend humanity's last colonists from alien raiders in this reimagined retro arcade shoot-'em-up. Experience classic gameplay rebuilt for modern touch screens.
- Retro arcade shoot-'em-up gameplay
- Rebuilt for modern touch screens
- Defend colonists from alien raiders
- Classic arcade tribute
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Humanity's last colonists are under siege. Alien raiders are sweeping in from every side to snatch them from the surface below — and you're the only ship standing between them and total abduction. DEFENDER REBORN brings the golden-age arcade shoot-'em-up back to life, rebuilt from scratch for modern touch screens. Enjoyed DEFENDER REBORN? I also made METEORIC, another classic arcade tribute, and ALIENSWARMS, an original 3D space combat game unlike anything else -- both available on the App Store.
Screenshots
Verdict
The clearest difference is in-app purchases: Rock Zapper at none against Defender Reborn's 1. Rock Zapper also leads on ads (none vs shown). On price, update cadence, device support 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. Defender Reborn sells 1 one-off in-app purchase. Rock Zapper asks for nothing beyond the download.
Rock Zapper ships an update every 6 days, Defender Reborn weekly. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.
| Parameter | Rock Zapper | Defender Reborn |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (3 ratings) — better |
| Number of ratings | — | 3 — better |
| Update frequency | Every 6 days — better | Weekly |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 36 MB | 96 MB |
| Age rating | 4+ | 9+ |
| Developer | Kang Engineering Systems LLC | Mark Mangieri |
In-app purchases
Rock Zapper
No in-app purchases
Defender Reborn
- Remove Ads$0.99
Questions
Is Rock Zapper free?
Is Defender Reborn free?
Do Rock Zapper or Defender Reborn have ads?
Which is updated more often, Rock Zapper or Defender Reborn?
Other comparisons
