Cyla – Period & Cycle Tracker

Cyla tracks your menstrual cycle without asking for anything in return. No account required. You can use the app for months without ever giving an email address: your periods, symptoms and notes stay encrypted on your phone. An account only serves to recover your history if you change devices, and you decide when to create one. WHAT YOU SEE • Where you are today: cycle day, phase, and what comes next • A calendar that tells what is observed from what is estimated — solid for the periods you logged, dashed for a prediction • A range rather than a single date: "around the 29th, between the 27th and the 1st" is honest, "the 29th" is not • Predictions that sharpen as you log real cycles, instead of repeating the length you declared at the start WHAT YOU LOG • Flow, mood, sleep, discharge, sexual activity • Eight common symptoms: cramps, headache, fatigue, bloating, breast tenderness, back pain, acne, nausea • Personal notes, encrypted, that never leave the device and appear in no share WHAT YOU LEARN • Average cycle length, range, regularity • The symptoms that come back, and where in your cycle • A health report as an image, with your figures and most-logged symptoms, t