SuppLab: Supplement Tracker

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