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Download on the AppStore Click here to request a review of this app

  • App Store Info


Encourage your youngster (or those young-at-heart) to fiddle with numbers on this musical calculator. Each digit plays a different note and calculation results play their corresponding tones. Inspired by the original Casio ML-840 melody calculator which all the kids used to fight over, MelodyCalc is a handy calculator with all the basic functions and big buttons for little fingers.

MelodyCalc can play notes using one of seven instruments: 12 String Chords, Grand Piano, Orchestral Strings, Toy Organ, Trumpet Section, Tula Bass, and Vibraphone!

Hate math? Just use the keys to play some songs!

Jingle Bells: 333 333 35123
Twinkle Twinkle: 1155665 4433221
Mary Had a Little Lamb: 3212333 222 355
Row Your Boat: 1 1 123 32345
The Saints Go Marching In: 1345 1345 13453132
Baa Baa Black Sheep: 11 55 66665

TRY ALL OF OUR APPS: 123's, ABC's, Aw Craps!, ColorTalk, MiniVLTone, MelodyCalc, SightWords Free, Smiley Sight Words, States&Capitals, TeachMe: Toddler, TeachMe: Kindergarten, TeachMe: 1st Grade, TimesTables, and WordFamiles.

CONTACT US: Please do not hesitate to contact us at [email protected] or visit

What's New in Version 1.1

Picker to choose one of seven instruments.


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