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Best Decode Self Apps & Games

108+ iOS apps & games curated and reviewed

4.5 avg rating
19 free apps & games
Updated June 2026

Whether you're new to decode self or looking for an upgrade, our curated collection of 108+ iOS apps and games has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Top Picks for Decode Self

Cryptogram · Cryptoquote Game#2

Cryptogram · Cryptoquote Game by Matthew Murphy

Decode Famous Quotes
Strong Contender
🎮 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
Decode RPO - QR Reader#3

Decode RPO - QR Reader by Vyacheslav Kravchina

Scan&Decode GM Vehicle QR Code
Worth Considering
🔧 Utilities
5.0(2 ratings)
FreeAds
Decode RPO - QR Reader screenshot 1
Decode RPO - QR Reader screenshot 2
Decode RPO - QR Reader screenshot 3
Decode RPO - QR Reader screenshot 4
Decode RPO - QR Reader screenshot 5
Decode RPO - QR Reader screenshot 6

Instantly decode GM vehicle RPO codes by scanning the QR code on your vehicle's label. Get a clear list of factory options installed on your car, making it easy to understand its specifications. Supports 2017 and newer model years.

More Decode Self apps to explore

4
PeaceMate - Emotion Tracker
PeaceMate - Emotion Tracker
PeaceMate - Emotion Tracker
Mental Health Chat: Depression
Free
🎬 Entertainment
(0)
5
Facemark: Decode People
Facemark: Decode People
Facemark: Decode People
Daily relationship improvement
Free

This app offers personalized guidance for self-improvement and building stronger relationships. It uses face reading and a self-growth method to create weekly plans, offering insights and practical tips to boost social skills and enhance connections in romance, career, and personality.

Personalized weekly improvement plansFace reading for feature analysisGoal setting for life areas
🌟 Lifestyle
(185)
free with in-app purchases
6
Morse Code - Learn & Decode
Morse Code - Learn & Decode
Morse Code - Learn & Decode
Simple way to learn morse code
Free

Learn and practice Morse code with this app. It offers translation between English and Morse, with output options for sound, vibration, and flashlight. Includes an auto-decode feature and a printable guide.

Morse code practice sectionEnglish to Morse translationSound, vibration, and flashlight output
🎮 Games
(13)
ad-supported
7
Encodify - Base64 & MD5
Encodify - Base64 & MD5
Encodify - Base64 & MD5
encode / decode & hash toolbox
Free

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
🔧 Utilities
(15)
free
8
ZenZen - Mental Health Support
ZenZen - Mental Health Support
ZenZen - Mental Health Support
Emotion Tracker: Betterhealth
Free

This AI-powered virtual companion offers a confidential space to discuss worries and receive personalized mental health exercise recommendations. It provides empathetic listening and expert advice for concerns like anxiety, depression, and loneliness, complementing professional therapy.

Confidential space for worriesAI-powered empathetic companionPersonalized mental health exercises
🏥 Medical
(2)
free with in-app purchases
9
Base64 Encoder Decoder
Base64 Encoder Decoder
Base64 Encoder Decoder
Convert text to base64
Free

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.

Encode text to Base64Decode Base64 to textUpload files for conversion
🔧 Utilities
(3)
free
10
VISAURA: Decode the Day
VISAURA: Decode the Day
VISAURA: Decode the Day
Uncover Your Soul’s Blueprint
Free
🌟 Lifestyle
(0)
11
Base64 Encode and Decode
Base64 Encode and Decode
Base64 Encode and Decode
by Le Vu
Free

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
🔧 Utilities
(1)
free with in-app purchases
12
UnderSelf
UnderSelf
UnderSelf
Decode your dreams & patterns
Free
💪 Health & Fitness
(2)
13
Morse Code Reader and Decoder
Morse Code Reader and Decoder
Morse Code Reader and Decoder
Flashlight & Light Transmitter
Free

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
🔧 Utilities
(2.3K)
free with in-app purchases
14
SelfDecode: DNA & Health Tests
SelfDecode: DNA & Health Tests
SelfDecode: DNA & Health Tests
by DECODIFY ME, LLC
Free

Unlock personalized genetic insights to optimize your health. Discover the best diet, supplement, and lifestyle choices for your body based on your DNA. Explore genetic tendencies, receive targeted recommendations, and access holistic health tools for a complete picture of your well-being.

Personalized genetic insightsDiet, supplement, and lifestyle recommendationsGenetic tendency analysis
🏥 Medical
(18)
free with in-app purchases
15
Cryptogram Tale
Cryptogram Tale
Cryptogram Tale
Unravel the hidden story!
Free

Decode encrypted messages to reveal hidden stories. This word puzzle game challenges you to break codes by substituting letters, offering hundreds of tales and thousands of cryptograms to solve. Customize your experience with various fonts and color schemes, and use hints when needed.

Hundreds of talesThousands of cryptogramsDozens of fonts
🎮 Games
(1.6K)
free with in-app purchases
16
GGMorse
GGMorse
GGMorse
Morse Code Audio Decoder
Free

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
🔧 Utilities
(70)
free
17
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
18
MorseDecoder
MorseDecoder
MorseDecoder
Translate Morse Code to Text
$9.99

This app decodes Morse code sounds directly from your device's microphone or headset input. It offers both automatic and manual decoding modes with adjustable parameters for optimal performance in various conditions.

Morse code sound to text translationAutomatic and manual decoding modesAdjustable audio filter frequency
🔧 Utilities
(49)
free
19
Dream Meaning － Dreams Decoder
Dream Meaning － Dreams Decoder
Dream Meaning － Dreams Decoder
Interpretation App・Dictionary
Free

Unlock the hidden messages and emotions within your dreams with AI-powered interpretation. Explore symbols, track patterns, and gain deeper self-understanding through a personalized dream journal and insights.

AI-powered dream interpretationDream journal and history trackingSymbol encyclopedia with meanings
🌟 Lifestyle
(1)
freemium
20
GeekTalk
GeekTalk
GeekTalk
Wysyłaj wiadomości jak GEEK!
Free

Encode and decode messages using binary code or Base64. Surprise your friends with unique "upside down" messages and have fun experimenting with different communication styles.

Encode messages in binaryDecode messages from binaryEncode messages in Base64
🌟 Lifestyle
(6)
free