Calla vs Period Tracker

Most period apps were built for adults trying to get pregnant. Calla wasn't. It's built for teens who just want to understand what's happening in their body - without the noise, the upsells, or the ovulation countdowns. Your data lives on your phone. No accounts required. No ads. No third parties, no data brokers, no advertisers. Optional parent share, if you want it. Privacy-first. Always. All your data stays on your phone. No accounts. No cloud. No ads. No data selling. Period. Built for how your body actually works Irregular cycles? That's normal, especially when you're starting out. Calla doesn't just assume a 28-day cycle - it learns your patterns and gives you predictions that actually make sense for your body. Track what matters to you Log your period, flow level, mood, energy, cramps, sleep, skin, focus, appetite, and activity. See how your cycle connects to how you feel day to day. Understand your cycle Get gentle, age-appropriate insights about each phase of your cycle - what's happening in your body and what to expect. Prep-day reminders Get a heads-up before your period is predicted to start so you're never caught off guard. Parent Mode Share a simple wellness signal with a parent or guardian - "all good" or "heads up" - without revealing any cycle details. Communication on your terms. Calla is not a medical app. It does not diagnose, treat, or prevent any medical condition. If you have health concerns, talk to a doctor.

Take complete control of your menstrual health with Period Tracker: Cycle & Sync, the modern, beautifully designed period and cycle tracker built for you—and your partner. Whether you are tracking your period, analyzing cycle phases, or logging daily symptoms, our app provides intelligent insights tailored to your unique body. KEY FEATURES: NATIVE HOME & LOCK SCREEN WIDGETS Stay updated without even opening the app. View your current cycle phase, day counter, and period predictions right on your home screen and lock screen. ACCURATE PERIOD & OVULATION TRACKING Log period start and end dates with a single tap. Our intelligent prediction algorithm learns from your cycle history to forecast your next period, ovulation day, and fertility window. DYNAMIC CYCLE PHASE GUIDANCE Understand the four key phases of your cycle: Menstrual, Follicular, Ovulation, and Luteal. Enjoy a dynamic dashboard that adapts colors and surfaced health insights based on your exact phase. INNOVATIVE PARTNER MODE & DATE PLANNER Stay in sync with your partner. Share cycle phases and period countdowns, and discover cycle-aware date ideas and care recommendations designed for each specific phase. Fosters empathy and closeness with customizable privacy settings. COMPREHENSIVE SYMPTOM & MOOD LOG Easily record symptoms, flow intensity, mood triggers, and energy levels. Gain deeper self-awareness with intuitive trend charts and historical pattern breakdowns. 100% PRIVATE & 100% FREE No ads, no subscriptions, no paywalls, and no hidden fees. Your health data remains private on your device with optional Face ID / Fingerprint biometric lock.