Comparison

Protocol 4 vs Mayor 4000

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Protocol 4

Features
Read 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?

About

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.

Highlights
  • 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
Features
Read 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

Protocol 44 screens
Mayor 40004 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Protocol 4 sells 7 one-off in-app purchases. Mayor 4000 asks for nothing beyond the download.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
Protocol 4 versus Mayor 4000: the parameters behind the verdict, then further details
ParameterProtocol 4Mayor 4000
PriceFreeFree
Rating—4.8 (50 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—50 — better
Update frequencyEvery 3 monthsEvery 3 days — better
AdsYesNo — better
In-app purchasesYesNo — better
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size12 MB460 MB
Age rating4+9+
DeveloperHAKAN OZGER婉媚 邵

In-app purchases

7 purchases

Protocol 4

One-time7
  • Pocket Change$0.99
  • Starter Kit$1.99
  • Agent License$2.99
Show 4 more
  • Hacker's Stash$4.99
  • Pro Kit$4.99
  • Trust Fund$9.99
  • Master Kit$9.99
None

Mayor 4000

No in-app purchases

Questions

Is Protocol 4 free?
Protocol 4 is free to download, with in-app purchases available.
Is Mayor 4000 free?
Mayor 4000 is free to download, with no in-app purchases.
Do Protocol 4 or Mayor 4000 have ads?
Protocol 4 shows ads; Mayor 4000 does not.
Which is updated more often, Protocol 4 or Mayor 4000?
Protocol 4 ships an update every 3 months, and Mayor 4000 every 3 days. Most recently, Protocol 4 was updated on October 8, 2026 and Mayor 4000 on October 31, 2026.

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