Derin

Let every minute you focus become a star in your sky.

Derin is a focus app that rewards you for putting your phone down and getting back to work. Every session you complete adds a new star to your sky. Your stars join into real constellations, and you light up the whole sky with your own effort.

FOCUS WITHOUT DISTRACTIONS
• Lock the apps that pull you away with Screen Time for as long as you focus.
• Work with rain, forest, waves or fireplace sounds, or with your own Apple Music playlists.
• See the time left on the Lock Screen and in the Dynamic Island at any moment.
• Earn extra Light when you don't touch your phone for a whole session.

COLLECT YOUR SKY
• Every session lights a new star, and real constellations from Orion to Ursa Major come together one by one.
• Learn the story of each constellation you complete and find it in the real night sky.
• Spend the Light you collect on new sounds and boosts.
• Badges and streaks give you a reason to come back every day.

CONNECT WITH THE REAL SKY
• The sky calendar shows meteor showers, eclipses and nights when planets meet.
• Set a reminder when an event is near and watch it with your own eyes.

A JOURNEY THAT NEVER ENDS
• Once the whole sky is complete, the Journey of Light begins.
• Your focus hours become light-years, and you travel toward real star systems such as Alpha Centauri and TRAPPIST-1.

YOUR SKY STAYS WITH YOU
Derin works fully without an account. If you like, sign in with Apple or Google. Your progress is then saved and comes with you when you change phones.

NO ADS, NO TRACKING
Derin has no ads and doesn't track you. Your data is never sold or shared.