Topside Tools

On the App Store

Rent vs Buy

Renting and buying both hide their real costs. This compares them on total net worth rather than the monthly payment, so you see which actually leaves you better off, and in what year.

See the app →

Private beta

Stream Chat Generator

Fake chat gives itself away through rhythm. This generates chat that reacts to what actually happens in your video, arriving on a curve that drifts and surges the way real chat does.

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In development

Doomsday

Name the day of the week for any date in history, in your head, in seconds. Learn the algorithm one step at a time, then drill it until the arithmetic disappears.