KM1 vs Sync

KM1 - Your tracker for trainings and virtual running events. Track your activities, challenge your friends and participate in regional or international events. For free! KM1 tracks your real performance by calculating altitude adjustments to enable fair competitions with your friends and runners all over the world. No matter when and where you run. TRACK YOUR ACTIVITIES All relevant data at first sight: distance, pace, speed, elevation gained & calories burned. The more you run, the better your status. TRAINING Run and track as much as you want. After a particularly good performance, convert your training to a competition and invite your friends to challenge you. COMPETITIONS Open a competition in seconds, accept the challenge of a friend or participate in public events. No matter when and where you run. FAIR RACES No matter if you run uphill or downhill, the race is fair due to KM1's scientific algorithm to adjust your performance by elevation gains. LIVE AUDIO PUSH Activate your live update, which tells you regularly the distance and position in a live race. And how far you are behind the nearest opponent. REPRESENT YOUR COUNTY OR REGION Choose a flag to represent your region or country in international races. The glory is yours! PREFERENCES Manage your profile, choose english or german, miles or kilometres, upload a profile picture and your favorite flag. WEBSITE Check out www.km1.run to find all the latest news, activities and updates.

Sync Period tracks cycles locally and supports private sharing with a partner or friend. Log periods, symptoms, moods, and notes; view your calendar and pattern summaries; set optional reminders; and import supported Flo, Clue, Drip, or generic CSV data after reviewing what Sync can recognize. Your cycle history is encrypted on your device. Private predictions adapt to your recent cycle history and confirmed corrections entirely on your device. Sync shows a likely-start window and confidence level, learns recurring pre-period patterns, and can use an enabled BBT signal or positive ovulation test without uploading those health details. Predictions become more cautious when history is sparse or variable. Partner sharing is optional and off by default. You choose which supported cycle details to share. Updates are end-to-end encrypted and require the complete private invite to open. Each encrypted relay update expires after no more than 30 days; active sharing renews that rolling expiration when a new update is published. Recent physical symptoms and flow, sex-drive and intimacy check-ins, and moods are three separate opt-ins that can each be turned off again. Intimate sharing is off by default and never indicates consent. Discharge, medications, written notes, and other sexual details remain private. Sync Period has no ads, no behavioral analytics SDKs, and no required account. You can export a private backup or permanently delete local app data at any time. Cycle predictions and pattern summaries are estimates. Sync Period does not provide diagnosis, contraception, or medical advice.