Learn and practice Morse Code by touching the screen to generate tones. Adjust tone frequency from 300 Hz to 1200 Hz and control volume. Send dots with short touches and dashes with longer holds.
by Ronald Nicholson★ 4.528 ratingsEducationFreeData updated 2026-09-08
Write notes and sketches using fingers or a stylus. Choose from five colors: black, red, blue, green, and pink. Save color selections with a bottom button. Draw on a blank canvas with smooth, multi-touch support.
The app lets children hear Dutch letter and word sounds with a talking movable alphabet. It offers spelling practice with over 300 questions and allows users to create custom quizzes and track progress.
The app offers the complete California Welfare and Institutions Code for iPhone and iPad. It features fast full-text search, real-time section number search, and the ability to email or print sections.
Tune musical instruments using a built-in microphone. Display frequency readings and animated strobe visuals for precise tuning. View waterfall panes for detailed pitch analysis. Supports multiple tuning modes and calibration options.
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Test performance with frequency analysis and decibel measurement. Clean speakers by removing trapped water. Generate pure tones for testing or tuning. Calibrate audio equipment for accurate sound output.
Learn pronunciation by entering and listening to their audio playback. Save as bookmarks for review. Adjust voice speed and tone in settings. Choose from multiple language options including Chinese, English, Japanese, Korean, and .
The app offers eight clock faces from the DG7+, DG7 GEMS, and DS5 collections. Users can set alarms with original tones or their own music, and utilize timer and stopwatch functions.