STOP vs Helix Protocol
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
STOP
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This is a combat action game to destroy the growth of STOP-CELL that caused the pandemic on a global scale. Easy operation allowed to set the cat human beings of ten people by touching the screen, only to attack the enemy automatically by releasing the touch, anyone can play easily. Enjoy the sound and battle a powerful small cat human who fight hard.
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.
Screenshots
Verdict
The clearest difference is in-app purchases: STOP at none against Helix Protocol's 7. STOP also leads on iOS requirement (12.0 vs 16.0). On price, update cadence, ads and device support 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. Helix Protocol sells 7 one-off in-app purchases. STOP asks for nothing beyond the download.
STOP ships an update every 10 days, Helix Protocol every 3 weeks. The most recent releases landed on October 9, 2026 and October 8, 2026 respectively.
| Parameter | STOP | Helix Protocol |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 days — better | Every 3 weeks |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 30 MB | 45 MB |
| Age rating | 4+ | 9+ |
| Developer | ERX | Oleksii Poliakov |
In-app purchases
STOP
No in-app purchases
Helix Protocol
- 50K Credits$2.99
- 125K Credits$5.99
- 175K Credits$8.99
Show 4 moreShow fewer
- 250K Credits$12.99
- 500K Credits$19.99
- 750K Credits$24.99
- 1M Credits$29.99








