
EMERGENCY TOOLBOXDisaster prevention/emergency tools / Android
Take the next step in an emergency. Access sound signals, a flashlight, your location, and emergency contacts in one app.
An independent software studio in Yokohama
We build Android apps for everyday challenges, from preparing for emergencies to finding a healthier balance with your smartphone.

Take the next step in an emergency. Access sound signals, a flashlight, your location, and emergency contacts in one app.

A calmer smartphone. Keep only the apps you need on your home screen, so you can focus on what matters.

Find your rhythm in daily practice. Keep things simple with tap tempo, a count-in, and saved favorites.
About SANGE Studio
We focus on making apps easy to use when you need them. SANGE Studio designs and develops mobile apps around the challenges of everyday life.
View studio introduction ↗Get in touch with app questions, bug reports, or other inquiries.