Period tracker. No account. No cloud. Just you.
Private. Offline. Free.
Coming soon to Google PlayYour data never leaves your phone. No sign-up, no email, no password.
No internet needed. Ever. Track your cycle anywhere in the world.
One small banner on the stats screen. That's it. Never in your face.
Most period apps make money by selling your health data. Luna makes money from a single unobtrusive ad and an optional $1.49 one-time upgrade. That's the whole business model. Your period dates, symptoms, and mood stay on your phone. Luna has no servers. We literally cannot access your data.
Read our full privacy policy →