Protocol 4 vs CodeCypher
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Protocol 4
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Step into the world of elite hackers with Protocol 4! Your mission is to crack secret codes using pure logic, deduction, and specialized hacking tools. Play the high-stakes Daily Challenge, climb the Global Leaderboards, or challenge another operator to a real-time PvP Duel! Features: REAL-TIME PvP DUELS: Race another operator to the same code, or play a STANDOFF where each of you sets the code the other must break. Stake your credits — the winner takes the pot. 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 a syndicate, 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. MULTIPLE GAME MODES: Play Quick Hacks for fast action, Training to hone your skills, or the Daily Challenge for massive rewards. ARSENAL OF TOOLS: Use advanced tools like Logic Analyzers, Time Warps, and Oracle Hints to gain the upper hand. CAREER CONTRACTS: 18 long-run contracts and fresh daily missions keep your ledger moving. PROGRESSION SYSTEM: Start as a Rookie and level up to unlock elite titles and badges. Play in English, Turkish, Spanish, French, German or Portuguese — on iPhone and iPad. Are you ready to initiate Protocol 4?
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.
- Elegant logic puzzle gameplay
- Infinite puzzles
- Daily puzzle challenge
- Global leaderboards
- Personal solving stats
- Clean modern design
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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
Verdict
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
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.
Protocol 4 ships an update every 4 months, CodeCypher every 3 months. The most recent releases landed on September 6, 2026 and September 21, 2026 respectively.
| Parameter | Protocol 4 | CodeCypher |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 4 months | Every 3 months — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.6 — better |
| Further details — not scored | ||
| Size | 12 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | HAKAN OZGER | Kyle Richards |
In-app purchases
Protocol 4
- Pocket Change$0.99
- Starter Kit$1.99
- Agent License$2.99
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- Hacker's Stash$4.99
- Pro Kit$4.99
- Trust Fund$9.99
- Master Kit$9.99
CodeCypher
- Disable Ads$2.99








