Best Cipher Decoder Apps & Games

207+ iOS apps & games curated and reviewed

4.4 avg rating
19 free apps & games
Updated June 2026

Out of 207+ cipher decoder apps on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Top Picks for Cipher Decoder

Sub Cipher#1

Sub Cipher by Eduard Schwan

Encode and Decode Messages
Editor's Choice
🔧 Utilities
3.8(4 ratings)
Free
Sub Cipher screenshot 1
Sub Cipher screenshot 2
Sub Cipher screenshot 3
Sub Cipher screenshot 4
Sub Cipher screenshot 5

Easily encode and decode messages using simple substitution ciphers like Caesar and Atbash. Convert up to 2,000 characters at a time and save your cipher settings for later use. Ideal for fun educational purposes, not for serious secret messaging.

Cipher Sender#2

Cipher Sender by Julian Tigler

Send secret messages
Strong Contender
🔧 Utilities
4.6(39 ratings)
Free
Cipher Sender screenshot 1
Cipher Sender screenshot 2
Cipher Sender screenshot 3
Cipher Sender screenshot 4
Cipher Sender screenshot 5

This app allows you to send secret messages to your friends using a variety of historical ciphers and codes. It supports popular encryption methods like Caesar Shift, Morse Code, and Vigenere Cipher. The application is open source, inviting community contributions.

PocketCipher#3

PocketCipher by Joystiq LLC

Encrypt/Decrypt text
Worth Considering
📚 Education
3.0(2 ratings)
Free
PocketCipher screenshot 1
PocketCipher screenshot 2
PocketCipher screenshot 3

This app provides tools for text transformation and cipher decoding. Explore classic encryption methods, convert text to binary, hex, and Base64, and learn about cryptography principles. All processes are performed locally for privacy.

More Cipher Decoder apps to explore

4
Cryptogram · Cryptoquote Game
Cryptogram · Cryptoquote Game
Cryptogram · Cryptoquote Game
Decode Famous Quotes
Free

Decode famous quotes using a 1-to-1 substitution cipher. This free word puzzle game challenges your knowledge of language and grammar to reveal insightful sayings from notable individuals. Play online or offline and track your solve times.

Decode famous quotes1-to-1 substitution cipherWord puzzle game
🎮 Games
(6.7K)
ad-supported
5
The Guides Axiom
The Guides Axiom
The Guides Axiom
Inventive Codebreaking Puzzler
Free

This inventive puzzle game challenges your wit with over 100 unique interactive codes and ciphers. Progress by discovering clues, patterns, and utilizing integrated decoding tools. Explore a nonlinear path and uncover secrets with the freedom to save notes and screenshots.

Over 100 interactive puzzles and ciphersIntegrated decoding tools (Morse, binary, etc.)Nonlinear gameplay and reimagined level select
🎮 Games
(1.9K)
free with in-app purchases
6
Cipher Forge
Cipher Forge
Cipher Forge
by Curtis Wyattt
Free
📚 Education
(0)
7
Cipher - Decode the Message
Cipher - Decode the Message
Cipher - Decode the Message
by Eldar Tutnjic
Free
🎮 Games
(0)
8
Decrypto: Cipher Cryptograms
Decrypto: Cipher Cryptograms
Decrypto: Cipher Cryptograms
Challenge your curious mind
Free

Engage in a captivating puzzle game where you decode classic ciphers and solve cryptogram word puzzles. This app offers a challenging yet accessible experience for those who enjoy riddles and code-breaking. It's designed for curious minds to train their brains with pure, ad-free fun.

Decode classic ciphersSolve cryptogram word puzzlesBreak challenging codes
🎮 Games
(103)
free with in-app purchases
9
Code Busters: Word Puzzle Game
Code Busters: Word Puzzle Game
Code Busters: Word Puzzle Game
Brain Puzzle & Cipher Words!
Free

Engage your mind with a variety of puzzles including cryptograms, anagrams, crosswords, and Sudoku. This game offers over 500 levels and 10,000 quotes for an enriching intellectual adventure.

Cryptogram puzzlesAnagramsCrossword puzzles
🎮 Games
(6.3K)
free with in-app purchases
10
Cipher: Decode Any Language
Cipher: Decode Any Language
Cipher: Decode Any Language
by App4Life Sweden AB
Free
🔧 Utilities
(0)
11
Cipher Master - Word Game
Cipher Master - Word Game
Cipher Master - Word Game
Decipher Word Puzzle
Free

Engage your mind with a new word puzzle game. Decipher hidden phrases, learn interesting facts, and enjoy wise thoughts from famous people. This game offers a fun way to train your brain, practice logic, and expand your knowledge.

Decipher hidden phrasesLearn interesting factsSolve word riddles
🎮 Games
(0)
free with in-app purchases
12
Cipher Genius
Cipher Genius
Cipher Genius
Cryptograms, modern design
Free
🎮 Games
(2)
13
Cipherly: Cryptogram Puzzles
Cipherly: Cryptogram Puzzles
Cipherly: Cryptogram Puzzles
Decode beautiful quotes daily
Free
🎮 Games
(0)
14
The Cipher
The Cipher
The Cipher
by Logan Richards
Free

This app allows users to encrypt and decrypt messages using a variety of classic ciphers. It also includes tools for cryptoanalysis to help understand encrypted text and a mod calculator.

Multiple classic ciphers (Rail Fence, Caesar, Vigenere, Enigma, etc.)Cryptoanalysis tools (Letter Frequency, N-Gram Frequency)Mod Calculator
🔧 Utilities
(6)
free
15
Cipher
Cipher
Cipher
by TN-TECHNOLOGY
$2.99
📚 Education
(0)
16
Ciphers: Solve the Enigma
Ciphers: Solve the Enigma
Ciphers: Solve the Enigma
by Simon Booth
Free

Encrypt and decrypt messages using a wide variety of ciphers, from simple substitution to complex machines. Share your encrypted messages with friends. Supports multiple encryption methods for secure communication.

Multiple encryption methodsCaesar CipherEnigma Machine support
🔧 Utilities
(6)
free
17
Crypto: Cæsar and Vigenère ciphers
Crypto: Cæsar and Vigenère ciphers
Crypto: Cæsar and Vigenère ciphers
by Maxim Aleksa
Free

Encrypt and decrypt messages using classic Caesar and Vigenère ciphers. Easily create secret messages to share with friends or decode incoming encrypted text.

Caesar cipher encryption/decryptionVigenère cipher encryption/decryptionCreate encrypted messages
🔧 Utilities
(11)
free
18
Cipher Challenge - Codebusters
Cipher Challenge - Codebusters
Cipher Challenge - Codebusters
Aristocrat Patristocrat K1 K2
Free

Engage your mind with a variety of cipher decoding challenges. Practice different cipher types, track your progress, and compete with friends. Unlock quotes and sync your achievements across devices.

Multiple cipher modesLetter frequency analysisMultiplayer competition
🎮 Games
(4)
free
19
Keeper Password Manager
Keeper Password Manager
Keeper Password Manager
Passkey & Password Generator
Free

Securely store, generate, and autofill passwords, passkeys, and 2FA codes across all your devices. Protects sensitive data with zero-knowledge encryption and monitors the dark web for breaches.

Secure password generationPasskey and 2FA code storageCross-device syncing
📊 Productivity
(227K)
free with in-app purchases
20
Codeword Unlimited
Codeword Unlimited
Codeword Unlimited
Numbers to letters
Free

This app offers an unlimited supply of number-to-letter word puzzles, also known as Codewords or Cryptograms. Players can customize grid size, difficulty, and starting letters. It supports multiple languages and includes helpful tools for solving.

Unlimited puzzle generationCustomizable grid sizeAdjustable difficulty levels
🎮 Games
(7.9K)
free with in-app purchases