Blue Danube Studio

Thoughtful apps for everyday life.

Blue Danube Studio is an independent app studio in New York. We make simple, private apps that help people learn, connect, and grow.

Our apps

Mendocles icon

Mendocles

a flashcard for every word you meet

Language flashcards for one language or many, with spaced repetition, recall cards, pictures, and pronunciation. Your words stay on your device.

Hibikind icon

Hibikind

perfectly imperfect

A kinder habit tracker. Set goals daily, weekly, monthly or on your own schedule. Forgiveness coins, earned through streaks, cover a missed day, so one bad day never erases weeks of real effort. Weekly mood check-ins and small earned treats keep you showing up, imperfectly.

About the name

The Danube flows through ten countries and past a dozen languages on its way to the Black Sea. We like that picture: one river connecting many places. Our apps aim to do something similar for everyday life, simple tools that carry you a little further each day.

Contact

General questions: bluedanubestudio@gmail.com
Mendocles support: mendocles@gmail.com
Hibikind support: hibikind@gmail.com