Product notes
Apps
Shipping notes, interface decisions and lessons from TONKO, AirShare and other focused products.
Apps 5 min read
Building TONKO: A Pocket-Money App Where Parents Approve Everything
TONKO is an Android app for kids' first money habits. Here is why it has no bank card, why prices are hidden from children, and how one app serves a parent, a child, and a shared phone.
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Apps 3 min read
AirShare Product Notes
AirShare is built around fast, private file delivery: local discovery when devices are nearby, relays when they are not, and a flow that stays out of the way.
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