We build AI products that do one useful thing well.
Yojowa, LLC is a technology company in Sammamish, Washington. We ship small, focused software: a companion that talks to you while you drive, a stock model that publishes its own misses, a vocabulary trainer that knows when you are about to forget a word, and a tool that reads century-old handwriting from a photograph. Four products, all live, all built by a small team with a lot of automation.
Our products
Withby
An AI companion for the road. Withby narrates what you are actually driving past — the exits, the landmarks, the neighbourhoods — and answers questions out loud while you keep your hands on the wheel. Real places, real roads, in real time.
withby.aiStockMap
Two-week directional calls on thousands of stocks, scored against a market benchmark — and every single prediction is graded once the window closes, misses included. The track record is public because a forecast nobody grades is not a forecast.
stockmap.ioLexitrail
Chinese vocabulary that actually sticks. Lexitrail uses spaced repetition to surface each word just before you would have forgotten it, across HSK levels and beyond — five focused minutes a day instead of an hour of cramming.
lexitrail.comFamilyLore
Read the letters nobody in the family can read any more. Photograph a handwritten page — a wartime letter, a diary, a document in a language you do not speak — and FamilyLore transcribes it, translates it, and gives you back the story inside.
familylore.aiHow we work
Yojowa is deliberately small. We build narrow products, put them in front of real users early, and keep the ones that earn their place. Most of our engineering, testing and operations run through a fleet of autonomous software agents, which is how a company this size ships and maintains four live products at once.
We publish what we measure — including when the numbers are unflattering. StockMap's public accuracy ledger includes every miss, by design. It is the same principle everywhere else: a claim we cannot check is a claim we do not make.