Helix Protocol vs Evil Ducks Castle
Price, ratings, monetisation and update history for both games, side by side โ with what reviewers say about each.
Helix Protocol
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When humanity faced the threat of an alien invasion, Earthโs last line of defense was activated โ the Helix Protocol. - The Immortal Warrior - You are a clone, reborn after every death through advanced consciousness and memory replication. Each defeat makes you stronger. - Progress Through Experience - The system analyzes your performance and rewards you with credits. Use them to upgrade your ship and unlock its full potential. Tactical Energy Management: Redirect power between shields, weapons, and engines to adapt to the evolving threats in battle. - Ship Customization - Tune your ship to match your playstyle and gain a strategic advantage. - Global Pilot Rankings - Compete with other players on the leaderboard that reflects your achievements in combat. Helix Protocol is more than survival. Itโs a journey of evolution, relentless improvement, and resistance. Prove youโre not just a survivor โ turn every defeat into experience, and every victory into a new era in the war for Earthโs future.
Evil Ducks Castle
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Action packed endless flying style game with an end! Fly through 10 intense rhythm based stages to get through the castle. Avoid all obstacles in your way and Beware of the Evil Ducks Ghost who is lurking within the castle. Tap Tap or Tap and hold simple one touch controls.
Screenshots
Verdict
The clearest difference is price: Helix Protocol at Free against Evil Ducks Castle's $0.99. Helix Protocol also leads on update cadence (every 3 weeks vs every 37 months). Evil Ducks Castle's advantage is in-app purchases (none vs 7) and ads (none vs shown).
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Helix Protocol is free to download; Evil Ducks Castle costs $0.99 up front. Helix Protocol sells 7 one-off in-app purchases. Evil Ducks Castle asks for nothing beyond the download.
Helix Protocol ships an update every 3 weeks, Evil Ducks Castle every 37 months. Both last shipped on October 8, 2026.
| Parameter | Helix Protocol | Evil Ducks Castle |
|---|---|---|
| Price | Free โ better | $0.99 |
| Update frequency | Every 3 weeks โ better | Every 37 months |
| Ads | Yes | No โ better |
| In-app purchases | Yes | No โ better |
| Devices | iPhone | iPhone, iPad, iPod โ better |
| Requires iOS | 16.0 | 12.2 โ better |
| Further details โ not scored | ||
| Size | 45 MB | 21 MB |
| Age rating | 9+ | 4+ |
| Developer | Oleksii Poliakov | Anthony Hindle |
In-app purchases
Helix Protocol
- 50K Credits$2.99
- 125K Credits$5.99
- 175K Credits$8.99
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- 250K Credits$12.99
- 500K Credits$19.99
- 750K Credits$24.99
- 1M Credits$29.99
Evil Ducks Castle
No in-app purchases
Questions
Is Helix Protocol free?
Is Evil Ducks Castle free?
Do Helix Protocol or Evil Ducks Castle have ads?
Which is updated more often, Helix Protocol or Evil Ducks Castle?
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