Coming Soon to iOS

Your body's
dashboard.

Meds & supplement tracker. Estimate decay, schedule reminders, and monitor your goals — all in one place.

No spam. Just a heads-up when we launch.

Entry log screen
Log

Log everything in seconds.

Tap a substance, enter your dose, and you're done. Relix handles the rest — estimating how long it'll be in your system, aggregating insights, tracking your goals, and more.

Prebuilt substance library Custom substances Substance groups Scheduled reminders
Add entry screen
Graph

Estimate levels over time.

After you log something, Relix shows a curve of how that substance is likely fading from your body — based on your age, weight, and sex. It's an informational estimate, not a medical measurement.

Personalized to you 24h projection Multiple substances
Decay graph screen
Calendar

Spot your patterns at a glance.

A monthly heatmap shows intensity by substance — darker days mean more. Browse by substance or see everything at once to understand your month as a whole.

Monthly heatmap Per-substance view Monthly summary
Calendar screen
Goals

Build the habits you want.

Set targets for any substance — "take creatine at least 6 days a week" or "keep caffeine under 400mg per day." A weekly habit grid shows where you're on track and where you slipped.

Daily / weekly / monthly Minimum & maximum goals Habit dot grid
Goals screen

Your data stays yours.

We built Relix so it never needs to know who you are. Everything you log stays on your phone — full stop.

Saved on your phone only

Everything you enter — substance names, doses, dates — is stored only on your device. We have no server and no way to see your data. Ever.

Never sold or shared

Because your data never reaches us, there is nothing to sell, share, or hand over to anyone — no advertisers, no data brokers, no third parties.

Never used to train AI

Your personal health information is never used to train artificial intelligence or any machine learning model — not now, not in the future. Your data is yours alone.

No account, no tracking

Open the app and start logging — no sign-up, no email, no password. Optional Face ID or Touch ID lock keeps nosy eyes out.

Read the full Privacy Policy →

Be first to know.

Relix is launching soon on the App Store. Enter your email and we'll notify you the moment it's live.

No spam. Just a launch notification.

For informational purposes only. Relix provides educational estimates based on general pharmacokinetic models. It is not a medical device and does not provide medical advice. Decay curves and activity estimates are approximations — not clinical measurements. Always consult a qualified healthcare professional before making any decisions about medications or supplements.