Perioda - Period Tracker

Perioda is a period tracker that keeps everything on your phone.

No account. No sign in. No server. Your cycle, your symptoms and your notes are stored on your own device and are never uploaded anywhere, which means nobody can read them. Not an advertiser, not a company, not us.

WHAT IT DOES

Log the first day of your period and Perioda works out the rest. It learns your own cycle length from your history instead of assuming everyone is the same, and the more you log, the sharper it gets.

You get a period calendar showing what has happened and what is coming, a countdown to your next period, and your fertile window and ovulation day marked clearly.

TELLS YOU IF YOU ARE NORMAL

This is the question most people open a cycle tracker to answer. Perioda compares your cycle to the typical range and says so in plain words, kindly, without jargon. It will never name a condition or pretend to be a doctor.

FINDS YOUR PATTERNS

After a few months it can tell you which symptoms follow your cycle and roughly which day they arrive. Cramps on day two. Low mood the week before. The things you half-noticed but were never sure about.

REMINDS YOU BEFORE, NOT AFTER

A period reminder two days ahead and again on the day, so it is never a surprise. Reminders are scheduled on your phone and hidden on your lock screen.

THE WHOLE YEAR AT ONCE

Your next twelve periods, fertile windows and ovulation dates, all visible. Most trackers put this behind a subscription. Here it is free, because it is arithmetic on your own data.

MADE TO LIVE WITH

Six soft themes and six characters to choose from. A PIN lock if you share your phone. Moods, flow, symptoms and notes, logged for any day, not just today.

FREE, AND HONESTLY SO

Perioda costs nothing. There is no subscription, no premium tier and nothing to buy. It is paid for by ads, and those ads never receive your cycle, your symptoms or your notes. Extra themes unlock by watching a short video if you want them, and you never have to.

PRIVACY IS THE DESIGN, NOT A SETTING

There is no account to delete because there was never one to create. There is no cloud backup, no sync and no analytics. One tap in Me removes everything you have ever logged, instantly. If you lose your phone, that data is gone, and that is the trade we chose deliberately.

Perioda is not a contraceptive and cannot diagnose any condition. Predicted fertile days are estimates from a calendar, and real cycles shift with stress, illness, travel and sleep. If something about your cycle worries you, please speak to a doctor.

Made by one person. If something is broken or you have an idea, write to us.