Comparison

Protocol 4 vs CodeCypher

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

CodeCypher

Engage in a modern logic puzzle where you deduce a hidden number sequence. Each guess provides clues to help you eliminate possibilities and uncover the secret code through logical deduction. Offers infinite puzzles and a daily challenge.

Highlights
  • Elegant logic puzzle gameplay
  • Infinite puzzles
  • Daily puzzle challenge
  • Global leaderboards
  • Personal solving stats
  • Clean modern design
Features
Read full description

Crack the code. Master the clues. CodeCypher is a modern logic puzzle where every guess reveals new information. Use deduction, eliminate possibilities, and uncover the hidden number sequence. FEATURES • Elegant logic puzzle gameplay • Infinite puzzles across multiple difficulties • Daily puzzle challenge • Global leaderboards • Track your personal solving stats • Clean modern design built for focus HOW IT WORKS Each puzzle hides a secret number code. Your guesses reveal clues: • Exact — correct digit in the correct position • Misplaced — correct digit in the wrong position Use logic and deduction to narrow down possibilities until only one solution remains. Perfect for fans of: • Mastermind • Sudoku • Logic puzzles • Brain teasers • Deduction games Can you crack the code?

Screenshots

Protocol 44 screens
CodeCypher4 screens

Verdict

The call

Protocol 4 and CodeCypher are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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 and CodeCypher sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. Both last shipped on October 8, 2026.

ScorecardNo meaningful differences
Protocol 4 versus CodeCypher: the parameters behind the verdict, then further details
ParameterProtocol 4CodeCypher
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 3 monthsEvery 3 months
AdsYesYes
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.016.6 — better
Further details — not scored
Size12 MB12 MB
Age rating4+4+
DeveloperHAKAN OZGERKyle Richards

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
1 purchases

CodeCypher

One-time1
  • Disable Ads$2.99

Questions

Is Protocol 4 free?
Protocol 4 is free to download, with in-app purchases available.
Is CodeCypher free?
CodeCypher is free to download, with in-app purchases available.
Do Protocol 4 or CodeCypher have ads?
Both Protocol 4 and CodeCypher show ads.
Which is updated more often, Protocol 4 or CodeCypher?
Protocol 4 ships an update every 3 months, and CodeCypher every 3 months. Most recently, Protocol 4 was updated on October 8, 2026 and CodeCypher on October 8, 2026.

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