Best Decode Apps & Games

233+ iOS apps & games curated and reviewed

4.6 avg rating

19 free apps & games

Updated May 2026

The best decode apps on iPhone average 4.6★ across 233+ titles — we've ranked them by what real users actually keep on their phones. Updated May 2026.

Top Picks for Decode

#1

Cryptogram · Cryptoquote Game by Matthew Murphy

Decode Famous Quotes

Editor's Choice

🎮 Games

4.7😊(6.7K ratings)

FreeAds

Cryptogram · Cryptoquote Game screenshot 1

Cryptogram · Cryptoquote Game screenshot 2

Cryptogram · Cryptoquote Game screenshot 3

Cryptogram · Cryptoquote Game screenshot 4

Cryptogram · Cryptoquote Game screenshot 5

Cryptogram · Cryptoquote Game screenshot 6

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.

What We Love

👍 Great help
👍 Fun, enjoyable and great mental exercise
👍 Challenging but not too difficult
👍 Keeps brain active

Room to Improve

🐛 Possible app replication or hacking
🔍 Ads are too frequent, long, and intrusive
🔍 Ads are distracting and disruptive

#2

Base64 Encoder Decoder by Ahmad Sattar

Convert text to base64

Strong Contender

🔧 Utilities

5.0(3 ratings)

Free

Base64 Encoder Decoder screenshot 1

Base64 Encoder Decoder screenshot 2

Base64 Encoder Decoder screenshot 3

Base64 Encoder Decoder screenshot 4

Base64 Encoder Decoder screenshot 5

Base64 Encoder Decoder screenshot 6

Easily convert text to and from the Base64 number system. This free utility allows you to encode or decode text quickly, with options to copy or download the results.

#3

NFC.cool Tools Tag Reader by Nicolo Stanciu

Read and write RFID chip cards

Worth Considering

🔧 Utilities

4.5😊(6.6K ratings)

FreeAdsIn-App Purchases

NFC.cool Tools Tag Reader screenshot 1

NFC.cool Tools Tag Reader screenshot 2

NFC.cool Tools Tag Reader screenshot 3

NFC.cool Tools Tag Reader screenshot 4

NFC.cool Tools Tag Reader screenshot 5

NFC.cool Tools Tag Reader screenshot 6

This app allows you to read and write NFC tags, scan and create QR codes, digitize documents, and capture 3D models. It offers advanced NFC tools like encryption and batch operations, alongside a versatile QR code scanner and document scanner with OCR.

What We Love

💯 Excellent app
🚀 Easy to use
👍 User-friendly
🔥 Awesome features

Room to Improve

🐛 Crashes frequently
💰 Expensive subscription
📢 Too many ads

More Decode apps to explore

Morse Code Reader and Decoder

Morse Code Reader and Decoder

Flashlight & Light Transmitter

Convert text to Morse code and vice versa. Transmit messages using flashlight, screen blinking, vibration, or sound. Includes practice modes for learning Morse code.

Text to Morse code conversionMorse code to text conversionFlashlight transmission

free with in-app purchases

Decode - Know the Truth

Decode - Know the Truth

by Bloomrise Studios Inc.

Text Encryption Tool

Text Encryption Tool

Advanced Standard Encryption

Securely encrypt and decrypt text messages, emails, and confidential documents. Protect your sensitive information with advanced standard encryption and custom passwords for private communication.

Encrypt chat recordsSend confidential contentEncrypt email content

Cryptogram Cryptoquip Puzzles

Cryptogram Cryptoquip Puzzles

No Ads, Author Bio, Easy-Hard

Engage in challenging cryptogram puzzles with a clean, ad-free interface. Explore curated quotes across various themes and track your progress against experts. Exercise your brain with logic and word games.

Ad-free and distraction-free solvingHand-curated and validated quotesTen popular puzzle categories

free with in-app purchases

Base64 Encode and Decode

Base64 Encode and Decode

Easily convert text and data into Base64 format and back again. This utility app provides a straightforward way to encode and decode information for various applications.

Base64 encodingBase64 decodingData conversion

free with in-app purchases

Encodify - Base64 & MD5

Encodify - Base64 & MD5

encode / decode & hash toolbox

This utility app allows users to encode and decode various text formats, including Base64, Unicode, Morse code, and URI encoding. It also calculates multiple hash values like MD5 and SHA256, and can encode images to Base64 and decode Base64 strings back to images.

Base64 encoding and decodingUnicode character encoding/decodingMorse code encoding/decoding

Learn & practice Morse Code

Learn and practice Morse code with interactive stories and dedicated training modes for tapping, listening, and reading. Features adjustable difficulty, a text-to-Morse translator, and progress tracking with badges.

Stories Mode for realistic transmissionsTapping, Listening, and Reading practice modesAdjustable WPM and Farnsworth timing

free with in-app purchases

Crack The Code | Decode Word

Crack The Code | Decode Word

Decode the hidden word

Engage your logic skills with this unique word puzzle game. Decode hidden messages by finding the key and using it to unlock encrypted words. It's a fun way to boost your brainpower and practice critical thinking.

Find the keyLock the keyDecode the message

by Hoover Pumping Systems Corporation

Gematria Calculator & Decode

Gematria Calculator & Decode

Bonus Date Between Calculator

📊 Productivity

VIN decoder & Window Sticker

VIN decoder & Window Sticker

Get Reports and Window Sticker

Instantly decode any vehicle's VIN to reveal its specifications, original window sticker, and comprehensive history. Access accident records, mileage, title checks, and maintenance insights. Supports classic cars and global coverage.

Free VIN DecoderVehicle History ReportsWindow Sticker Lookup

free with in-app purchases

This app provides a comprehensive programming syntax reference with definitions and examples in the user's native language. It leverages GPT-4 for real-time coding assistance and offers a community feature for users to share achievements and connect with others.

Programming syntax referenceNative language definitions and examplesGPT-4 powered coding assistance

by Arkadiusz Fryszkowski

Decode SMD resistors with this practical tool. It supports three-digit, four-digit, and EIA-96 encoded resistor values, providing quick and accurate identification.

Decodes 3-digit SMD codesDecodes 4-digit SMD codesDecodes EIA-96 SMD codes

FTC® DECODE™ Scorer by 20240

FTC® DECODE™ Scorer by 20240

The ultimate DECODE scorer.

This utility app assists with scoring for robotic competitions, tracking game elements, match data, and team assignments. It includes a timer, calculator, and randomization features for an enhanced scoring experience.

Full game scoring and savingHistory and statistics trackingBuilt-in full-screen timer

Morse Code Audio Decoder

Decode Morse code audio into text in real-time. This app automatically detects signal frequency and speed, displaying decoded text instantly. Simply allow microphone access and place your device near the audio source.

Real-time audio decodingAutomatic frequency detectionAutomatic speed detection

Cipher Master - Word Game

Cipher Master - Word Game

Decipher Word Puzzle

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

free with in-app purchases

by Ronald Nicholson

$3.99 | 50% OFF

This application decodes FT8 digital signals from amateur radio bands. It can process audio from external sources or directly from an SSB radio or SDR. The app also generates FT8 modulated audio for experimentation.

Decodes FT8 8FSK modulated signalsProcesses external audio or SDR soundSupports standard callsigns and 13-character messages

Related searches

decode rpo decoder game decode chess decode: word decoding puzzle jwt & base64 decoder/verifier sequence decoder rpo decoder sstv decoder vin decoder