PRODUCT
Ami Otsuka releases farstamp, a travel record app for iPhone, on the App Store
Author and app developer Ami Otsuka (representative of Hundreds LLC) released farstamp, a travel record app for iPhone, on the App Store at 12:00 JST on October 1, 2026. The app is developed and published by Hundreds US, LLC and runs in Japanese and English.
Scan a boarding pass, a hotel bill or a shinkansen ticket and the app reads the type, the date and the amount, then files it under the trip whose dates and countries match. Countries and prefectures visited, flights, nights away and distance travelled add up on a globe and a map, and can be exported as four kinds of share card (World, Stamps, Prefectures, Place). Place names cover 249 countries and regions, 3,392 cities and 3,172 airports in both languages.
farstamp is free to start; farstamp Pro (one-time, yearly or monthly) unlocks unlimited trips. Images are processed on the device and only the extracted text is sent. The app does not ask for location permission and contains no advertising, analytics or tracking SDK.
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About Ami Otsuka
Writer, engineer and entrepreneur, and head of Hundreds US, LLC. Starting in October 2023, while a student at Chuo University, she built an app a day with ChatGPT for 100 consecutive days and posted each one to X, a record published as #100 Days Challenge: I Built 100 Apps in 100 Days and My Life Changed (Nikkei BP, 2025). Named to Forbes JAPAN's Women In Tech 30 in 2026. She is now based in Thailand, writing, speaking and building apps. Her latest book is “I Dumped Everything on AI” (Shinchosha, on sale October 21, 2026).
