Educational

Audio Techniques | Sound Math The essential audio reference tool for sound engineers, audio professionals, and students. Wavelength & Period CalculatorEnter any frequency and temperature to instantly see the speed of sound, wavelength in feet and meters, period, and phase timing at nine key angles from 90° to 330°. Adjust frequency with a slider or … Read more

Chord Progression Lab Chord Progression Lab turns music theory into a sandbox. Pick a key. Pick a style. Listen. Tweak. Export. That’s the whole loop — and it’s surprisingly addictive whether you’re a songwriter looking for your next progression, a producer hunting for a starting MIDI, a music student studying voice leading, or just a … Read more

Look and Listen Times Table Look and Listen Times Table — the simplest way to learn multiplication. Look and Listen Times Table turns memorising the 1× through 12× tables into a quick, friendly daily habit. Tap any number and the app shows the next sum and reads it aloud — so kids learn by sight … Read more

School Retirement Estimator Plan your school retirement with confidence. School Retirement Estimator is a fast, focused calculator that helps public school employees see what their pension could look like — and how the Classic 2% at 55 and New 2% at 62 formulas compare for the same career. Enter three things and you’re done: The … Read more

SmartBaby “SmartBaby” is an educational baby game developed for the iPhone. Each time you touch the screen you will hear and see a letter, number, shape, or color. The screen is divided up into four buttons one for each subject. Current version has A-Z, 1-10, 9 colors, and 8 objects including happy and sad. Available … Read more