Text
Convert text to and decode incoming signals. Share decoded messages. the alphabet through interactive lessons and exercises. Track progress with daily practice. Test skills with quizzes and audio pattern recognition.
Showing 221–240 of 1,000 ranked alternatives.
Brian Enigma
Solve puzzles, track clues, decode codes
Access codebreaking tools like decoder rings and countdown timers. View reference material on word frequency, morse code, and semaphore. Includes links to hunts, ARGs, and transmedia storytelling resources. Supports iOS 7.
Ta Chang Song
Learn letters with and quizzes
Learn the English alphabet with interactive featuring voice-enabled letters and quiz mode. Trace letters, listen to pronunciation, and test knowledge with quizzes. Explore playful phonics activities for early learners.
Patcharapon Phasukdee
Tune, test, and train your ears
To identify musical notes through a 30-level program. Practice pitch recognition with interactive lessons. Track progress and improve ear skills for musicians and beginners.
Organic Software LLC
Study any topic in 1-2 minutes
Study any topic with flashcards and quizzes. Practice memorization through short, focused sessions. Track progress and review material for retention. Share notes and access a variety of subjects like Spanish and programming.
Vicki Partridge
And send Morse code signals
Convert your device into a with instant LED lighting. Use mode for continuous illumination. Send Morse code messages using pre-set symbols and toggle settings for signal patterns.
朔 洪
Encode and decode text formats
Encode and decode text between , Unicode, and Morse code. Support URI encoding and decoding. Calculate hashes using MD2, MD4, MD5, SHA1, SHA224, SHA256, SHA512. Encode images from the photo library to and decode strings to save images in the album.
Patrick J Maloney LLC
Upgrade your HAM license with questions
Review and practice questions from the Amateur Radio License exam pool. Access the Question Pool effective July 1, 2024. Track progress and prepare for exams. Upgrade from General to Amateur license. Sync study sessions across devices.
CodenQuest
To code with interactive lessons and exercises
Programming with interactive exercises and real-time feedback. Access bite-sized JavaScript and Python lessons. Track progress with gamified challenges. Practice coding in a simulated environment. Receive instant corrections and explanations.
TopOfStack Software Limited
Read , Arabic, practice pronunciation
Arabic pronunciation and spelling through interactive lessons. Practice Quranic verses with audio guidance. Access transliteration and translation for better understanding. Track progress with built-in exercises and quizzes.
Resuscitech Inc.
Learn CPR skills and earn a certificate
Learn CPR with interactive lessons, video demonstrations, and hands-on practice. Complete the course in 90 minutes. Earn an OSHA and AHA compliant certificate. Practice chest compressions using a couch seat cushion.
Russell Sullivan
, screen light, and S
A that uses the device's LED or screen for lighting. Adjust brightness and color settings. Access S.O.S. signals with audio tones. Use emergency mode with flashing colors and a siren. Enable strobe effects with adjustable flash rates.
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