The best alternatives to Boardim are Keezy Drummer, Platform, and Medly. If these 3 options don't work for you, we've listed a few more alternatives below.
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Medly takes a new approach to the way music is made, letting both seasoned and new musicians make epic music. Just pick your instruments, draw notes, record & sing, and drag & drop one of over 2300 loops or samples.
talkieboard.com is designed to help non-verbal people communicate with others. A basic collection of sounds is provided and there is the ability to add your own. We are currently trialling the product and are looking for feedback from target users or carers.