SunSync vs SuppLab

Always tired, waking groggy, or struggling to fall asleep? The cause might be simpler than you think — your morning light routine. SunSync syncs your day to the sun. Track sunlight exposure, estimate your vitamin D intake, and get personalized circadian rhythm guidance — all based on your real location and habits. Your body clock controls your sleep, energy, mood, and focus. SunSync helps you work with it — not against it. With SunSync you can: - Track sunlight exposure and daily light habits — know when you've hit your target - Estimate vitamin D from sun exposure based on your skin type and location - Log supplements and monitor your total daily intake - Follow personalized circadian recommendations for your schedule - Discover your best sunlight windows — and when to avoid the UV index - Build routines to improve sleep and melatonin production naturally - Set smart reminders for sunrise, sunset, and wind-down time - Add a home screen widget — see your vitamin D window at a glance, without opening the app - View history and long-term trends to see your progress Built for the biohacking community — and anyone who just wants to feel better. Whether you're optimizing for performance or simply tired of being tired, SunSync gives you the sunlight data your wellness routine has been missing. Vitamin D tracking, body clock alignment, supplement logging, and a home screen widget showing your vitamin D window — in one app. Disclaimer: SunSync provides estimates and general wellness guidance. It is not a medical device and does not replace professional medical advice. Terms: https://martarodriguezm.github.io/SunSyncLegal/terms.html Privacy Policy: https://martarodriguezm.github.io/SunSyncLegal/privacy.html

Does that supplement actually work for you — or are you paying for expensive placebo? SuppLab turns your supplement routine into a personal science lab: run randomized 21-day self-experiments (N-of-1 trials) and get an evidence-based verdict for YOUR body. No account, no cloud — all your health data stays on your iPhone. HOW IT WORKS 1. Pick a supplement and a goal (sleep, recovery, energy…) 2. SuppLab randomly assigns TAKE and SKIP days across 21 days 3. Complete a quick daily check-in while Apple Health tracks your baseline 4. Get a clear decision card: keep it, drop it, or test longer YOUR STACK, UNDER CONTROL • One-tap logging for your entire supplement stack • Adherence percentage — see how consistent you really are • Yearly waste calculator: what supplements that do nothing cost you per year • Smart alert when adding a new supplement mid-experiment, so your results stay clean BUILT ON REAL DATA • Apple Health baseline: sleep, HRV, resting heart rate, steps • Subjective daily check-ins combined with objective metrics • Randomized TAKE/SKIP protocol reduces placebo bias PRIVATE BY DESIGN • No account, no sign-up, no backend • All analysis runs entirely on-device • Your health data never leaves your phone Stop guessing. Start testing. Your body, your evidence. --- Terms of Use (EULA): https://umay.dev/supplab-terms-of-use.html Privacy Policy: https://umay.dev/supplab-privacy-policy.html