Zombie Boss Head vs Disturbed Protocol Zero
Price, ratings, monetisation and update history for both games, side by side โ with what reviewers say about each.
Zombie Boss Head
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Have fun playing this old-school platformer with zombies, ghosts and shark guns! Can you beat the zombie boss head? Trevor Monaghan (a boring chartered accountant from Newcastle Australia) has created this app from scratch with his 7 year old son, Joshua. Joshua wants to be a game developer and this is his first attempt. Joshua and his 5 year old brother Riley created all of the artwork for the game using Adobe Photoshop and Adobe Illustrator. The music was created on an iPhone using the Garage Band app.
Disturbed Protocol Zero
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The world has collapsed after the activation of the mysterious Protocol Zero. Cities are overrun with infected, resources are scarce, and escape is your only hope. In Disturbed Protocol Zero, you must explore dangerous zombie-infested environments, find supplies, solve puzzles, and repair various escape vehicles like buses, helicopters, and boats to survive. Explore abandoned hospitals, police stations, ports, and laboratories. Face hordes of infected and terrifying creatures. Search for parts, fuel, and tools to repair vehicles. Solve puzzles and unlock new areas. Manage limited ammunition, first-aid kits, and resources. Enjoy a pixel art survival horror experience. Each scenario offers new challenges, enemies, and ways to escape. Can you survive the chaos and uncover the truth behind Protocol Zero?
Screenshots
Verdict
The clearest difference is ads: Zombie Boss Head at none against Disturbed Protocol Zero's shown. Zombie Boss Head also leads on iOS requirement (11.0 vs 13.0). Disturbed Protocol Zero's advantage is update cadence (every 2 weeks vs every 40 months). On price, in-app purchases and device support there is nothing between them.
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Zombie Boss Head ships an update every 40 months, Disturbed Protocol Zero every 2 weeks. The most recent releases landed on October 6, 2026 and October 3, 2026 respectively.
| Parameter | Zombie Boss Head | Disturbed Protocol Zero |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 40 months | Every 2 weeks โ better |
| Ads | No โ better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 โ better | 13.0 |
| Further details โ not scored | ||
| Size | 18 MB | 185 MB |
| Age rating | 9+ | 12+ |
| Developer | Trevor Monaghan | Alejandro Dominguez |
In-app purchases
Zombie Boss Head
No in-app purchases
Disturbed Protocol Zero
No in-app purchases
Questions
Is Zombie Boss Head free?
Is Disturbed Protocol Zero free?
Do Zombie Boss Head or Disturbed Protocol Zero have ads?
Which is updated more often, Zombie Boss Head or Disturbed Protocol Zero?
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