A cozy studio crafting productivity and education apps for curious, detail-oriented people.
In development
All your newsletters. None of the inbox clutter.
A SaaS newsletter aggregator. Sign up, claim a custom handle@mailconcisely.com address, and subscribe to every newsletter you love. Read them all in a clean, unified dashboard — your personal inbox stays untouched.
In development
Mandarin vocab that actually sticks.
A spaced-repetition vocabulary app built specifically for Mandarin learners. Drills look-alike characters, prerequisite-aware word ordering, and a focus mode for stubborn words. No self-grading buttons — the app figures out how well you knew it. iOS-first, with iPad and web to follow.
Kamonohashi Project is a two-person partnership focused on craft over volume. We take our time, keep our scope tight, and ship things we're proud to use ourselves.
kamonohashi (カモノハシ) — the Japanese word for platypus. An egg-laying, venomous, duck-billed mammal that defies every category. We think the best software is a little like that.
Get in touch
yona@kamonohashi.io