Protocol 4 vs Mayor 4000
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Protocol 4
Read full descriptionHide full description
Crack the code before your rival does. Protocol 4 is a hacker game of pure deduction. Every guess gives you signal readings; you break the passcode with logic, not luck. Play solo, take on the Daily Operation, or duel another operator in real time. REAL-TIME PvP DUELS Race: one passcode, two operators. First one through wins. Standoff: each of you sets the code the other must break. Two codes, one clock, and you watch them close in on yours. Outsmart your rival and claim the reward. DAILY OPERATION A new code every day, the same for everyone. Crack it, climb the daily leaderboard and earn double XP. BUILD YOUR EMPIRE Assemble mining rigs, expand your vault, and run overclocks. Your network keeps earning credits while you are away. SYNDICATES AND TERRITORY Join one of three syndicates, claim territory on the map, and take your share of the pot that every raid feeds. RAIDS Break into a rival operator's grid and take what they left unguarded, then set your own defenses before they come for you. GLOBAL LEADERBOARD Earn XP and climb fifteen ranks to become the ultimate Server King. MORE WAYS TO PLAY Quick Hacks for fast action, Training to sharpen your deduction, and 18 career contracts plus fresh daily missions. ARSENAL OF TOOLS Oracle Scan, Double XP and more hacking tools to gain the upper hand when a code will not give. Play in English, Turkish, Spanish, French, German or Portuguese, on iPhone and iPad. Are you ready to initiate Protocol 4?
Mayor 4000
Build, zone, and manage your dream city from a small town to a thriving metropolis. Simulate citizens, jobs, and traffic, and balance the books while surviving disasters. Enjoy deep, offline-friendly gameplay with no timers or resource grinding.
- Zone and grow residential, commercial, and industrial areas
- Build essential infrastructure like roads and utilities
- Manage city services such as police and schools
- Balance the economy with taxes and ordinances
- Survive and rebuild from natural disasters
- Deep offline-friendly sandbox gameplay
Read full descriptionHide full description
Mayor 4000 is a pure city-building simulation made for mobile. No timers. No energy. No resource grinding. Build, zone, and manage your dream city. Start with a small town and grow it into a thriving metropolis where every citizen, job, and traffic jam is simulated month by month. You're the mayor. Every decision is yours: • Zone & grow — Lay out residential, commercial, and industrial zones and let neighborhoods rise on their own, from low-density streets to towering high-rises, as demand, land value, and desirability allow. • Build the infrastructure — Streets, avenues, highways, rail, subways, power grids, and water networks your citizens depend on. • Run the services — Police, fire, health, schools and universities, parks and landmarks. Fund them well, or watch your coverage crumble. • Balance the books — A real supply-and-demand economy links homes, shops, and factories. Set taxes, pass ordinances, issue bonds. • Survive disasters — Fires, earthquakes, floods, and tornadoes strike a living city. Rebuild from the rubble. • Keep them happy — Pollution, crime, traffic, and unemployment all matter. City reports, alerts, and resident requests keep the pressure on your decisions. • Expand your region — Connect multiple cities across an entire region and grow them together. Play your way: • No resource grinding, no waiting timers, no energy bars — open the game and build. • A true sandbox — no forced quests or objectives. Your city, your rules, your pace. • Deep, offline-friendly gameplay you can pick up anytime. Built for mobile: • Runs smoothly even on huge, densely packed cities, thanks to a from-scratch simulation engine. • One-handed, touch-first controls. No two cities are ever the same — build a leafy green suburb, a dense downtown, or an industrial powerhouse and make it your own. Every city tells a different story. Start building yours today.
Screenshots
Verdict
The clearest difference is in-app purchases: Mayor 4000 at none against Protocol 4's 7. Mayor 4000 also leads on ads (none vs shown) and update cadence (every 3 days vs every 3 months). On price 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. Protocol 4 sells 7 one-off in-app purchases. Mayor 4000 asks for nothing beyond the download.
Protocol 4 ships an update every 3 months, Mayor 4000 every 3 days. The most recent releases landed on October 8, 2026 and October 31, 2026 respectively.
| Parameter | Protocol 4 | Mayor 4000 |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.8 (50 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 50 — better |
| Update frequency | Every 3 months | Every 3 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 460 MB |
| Age rating | 4+ | 9+ |
| Developer | HAKAN OZGER | 婉媚 邵 |
In-app purchases
Protocol 4
- Pocket Change$0.99
- Starter Kit$1.99
- Agent License$2.99
Show 4 moreShow fewer
- Hacker's Stash$4.99
- Pro Kit$4.99
- Trust Fund$9.99
- Master Kit$9.99
Mayor 4000
No in-app purchases









