Helix Protocol vs Quiet Invasion
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Helix Protocol
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When humanity faced the threat of an alien invasion, Earth’s last line of defense was activated — 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. It’s a journey of evolution, relentless improvement, and resistance. Prove you’re not just a survivor — turn every defeat into experience, and every victory into a new era in the war for Earth’s future.
Quiet Invasion
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Swipe the screen to guide your spaceship, as you blast your way through outer space in Quiet Invasion!
Screenshots
Verdict
The clearest difference is price: Helix Protocol at Free against Quiet Invasion's $0.99. Helix Protocol also leads on update cadence (every 3 weeks vs every 4 months). Quiet Invasion's advantage is in-app purchases (none vs 7) and ads (none vs shown).
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Helix Protocol is free to download; Quiet Invasion costs $0.99 up front. Helix Protocol sells 7 one-off in-app purchases. Quiet Invasion asks for nothing beyond the download.
Helix Protocol ships an update every 3 weeks, Quiet Invasion every 4 months. The most recent releases landed on October 8, 2026 and October 15, 2026 respectively.
| Parameter | Helix Protocol | Quiet Invasion |
|---|---|---|
| Price | Free — better | $0.99 |
| Update frequency | Every 3 weeks — better | Every 4 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 12.2 — better |
| Further details — not scored | ||
| Size | 45 MB | 11 MB |
| Age rating | 9+ | 12+ |
| 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
Quiet Invasion
No in-app purchases
Questions
Is Helix Protocol free?
Is Quiet Invasion free?
Do Helix Protocol or Quiet Invasion have ads?
Which is updated more often, Helix Protocol or Quiet Invasion?
Other comparisons
