Regular Rate & Rhythm

Benign by design.

Independent iOS and Mac software from a practicing eye surgeon who has been shipping careful, useful apps since 2008 — tools for medicine, and a few for fun.

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More from the toolbox

Earlier apps, still on the App Store and still doing their jobs.

A physician's hand, an engineer's finish

"Regular rate and rhythm" is what a physician writes after listening to a healthy heart. It's also the goal for software: steady, predictable, quietly reliable. Founded in 2008 by Evan D. Schoenberg, MD — cornea, cataract, and refractive surgeon, and formerly lead developer of Adium.

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