Showing 21–40 of 1,000 ranked alternatives.
Michael Judge
Learn code with Koch method drills
Learn code using the Koch method with one-letter drills and mastery checks. Practice at full speed, track progress, and test knowledge. Customize settings for different learning goals. Share achievements and results.
昌飞 佘
Send encrypted messages using code
Encrypt and decrypt messages using code. Send encoded text via email or messaging apps. Include customizable symbols and support for multiple languages.
Khang Le
Signal for help
Send distress signals via using a keyboard or pre-set SOS sequence. Transmit signals through iOS device audio. Translate text to and vice versa. Access emergency communication features with one-touch activation.
Glowboat, LLC
Learn with reference key and instructions
Learn and practice with guided lessons, character and word drills, and phrase exercises. Track progress with speed indicators and adjust practice difficulty. Access a reference guide and detailed instructions for accurate learning.
Francis Bonnin
Translate code instantly
Translate text to code and vice versa. Type in code with on-screen keyboard. Learn code through lessons and quizzes. Convert text between code and standard format. Share code messages. Access advanced learning tools and social features.
Mark Wong
Convert text to and send signals
Convert text to and vice versa. Send and receive signals using front or rear light sources. Toggle manual light signals for instant SOS alerts. View signal patterns and practice encoding.
7th Gear
On your device
Provides illumination using the device's flash or screen. Users can activate the light, adjust brightness, and control the from the lock screen. The optimizes battery usage and launches quickly.
Noah Corp.
On demand
Turn on a bright with a single tap. Adjust brightness and color temperature. Use as a timer or night light. Share functionality with other devices via Bluetooth.
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.