Drowsa vs HerBattery

Drowsa helps rotating shift workers plan sleep and recovery around real-world schedules. Instead of assuming a normal bedtime, Drowsa builds practical guidance around your actual rotation. • Ready-made shift templates for nights, days, 12-hour rotations, 2-2-3 patterns, and custom schedules • Sleep-window planning based on your shift timing and circadian rhythm • Nap, caffeine cutoff, and light exposure guidance • Local reminders for sleep, wake, and recovery timing • Optional Apple Health sleep comparison when you grant Health access • Calendar export and shareable sleep-window messages • Privacy-first design: no account, no cloud, no tracking; your plan stays on your device Drowsa is built for nurses, factory workers, security staff, transport drivers, emergency workers, and anyone whose sleep has to work around rotating shifts. Drowsa is a planning and reminder tool, not medical advice. Do not rely on it as your only alarm or for safety-critical decisions. Support: Email: anjie@jiandou.com Developer: Jiandou Tech If you have questions, feedback, or need help with Drowsa, please contact us by email. Legal: Privacy Policy: https://jiandou.com/app/drowsa/privacy.html Terms of Use (EULA): https://jiandou.com/app/drowsa/useragreement.html Auto-Renewable Subscription Terms: https://jiandou.com/app/drowsa/subscription.html

HerBattery Understand her cycle. Build a stronger relationship. Sometimes the problem isn't love. It's timing. HerBattery helps you understand your partner's natural monthly rhythm through a simple battery-inspired visualization. Know what to expect, communicate with more empathy, and support her when it matters most. Built for partners. Designed for understanding. Private by design. She doesn't need the app. WHY HERBATTERY? Most cycle apps are built for women. HerBattery is built for the partner. Instead of charts, symptoms, and endless tracking, HerBattery transforms the menstrual cycle into something everyone instantly understands: a battery. A battery doesn't judge. It simply shows how much energy is available. Some days there's more. Some days there's less. One glance is enough. Not to predict her. Not to label her. Simply to understand her better. SIMPLE SETUP Getting started takes less than a minute. Just enter: * The first day of her last period * Her average cycle length That's all. HerBattery keeps everything up to date automatically. No daily logging. No accounts. No ongoing setup. UNDERSTAND THE FOUR PHASES Menstrual Lower-energy days often call for more patience, warmth, and practical support. Follicular Energy usually begins to return. A great time for plans, adventures, and meaningful conversations. Ovulation Often the highest-energy phase. Connection, confidence, and shared experiences may come more naturally. Luteal Energy gradually shifts. Consistency, empathy, and emotional awareness become especially valuable. PRIVATE BY DESIGN Privacy isn't a feature. It's the foundation. Your partner doesn't need to install anything. No accounts. No cloud. No servers. No tracking. No data collection. Nothing is uploaded. Everything stays on your device. Because understanding someone should never require giving away their private health data. FEATURES * Battery-inspired daily visualization * 28-day cycle overview * Daily relationship insights * Home Screen widgets * 100% offline * Zero data collection * No account required * No ads * Supports 32 languages * GDPR compliant SIMPLE PRICING * 7-day free trial * No credit card required * EUR 9.99 per year Less than EUR 1 per month. IMPORTANT HerBattery is designed for relationship awareness and educational purposes. It is not intended for medical, diagnostic, fertility, or contraceptive use.