Track your stack.
Every dose, refill and reminder in one quiet, private app. No account. No ads. Nothing leaves your phone.
Launching soon on Android. Drop your email and we'll tell you the day it's live.
Everything your stack needs
Built for the way real protocols work — multiple compounds, different schedules, vials and titrations.
Smart reminders
Exact-time, time-block or every-N-days. One combined ping when doses land together.
Supply projection
"≈ 10 doses left · refill Jul 3." See run-out before it happens, with cost per dose.
In your system
A relative-level curve modeled from each compound's half-life — see doses overlap.
Injection rotation
A body-map remembers where you pinned and recommends the next site.
Reconstitution calc
Vial mg + water mL → exact syringe units. Try it on the web →
Scan a label
Point your camera at a vial — Stack reads the strength and size on-device.
Bloodwork & weight
Labs, weight, body comp and lifts in the same place as your doses — trends line up.
Private by design
Encrypted on your device. No account, no ads, no analytics following you around.
Your whole stack, at a glance
Monochrome, fast and quiet — here's what tracking actually looks like.
Tap any screen to enlarge.
Know what you take.
Plain-English pages for 112 compounds — what each one is, how it works, half-life, storage and what matters when you track it. GLP-1s, peptides, TRT esters, orals and the everyday staples.
Browse the library Read the guidesQuick answers
Is Stack free?
Yes — tracking, reminders, supply projection and the core features are free. A Plus tier adds unlimited compounds, bloodwork tracking, encrypted backups and every card style.
Do I need an account?
No. There's no account, no email signup and no cloud requirement — your data is stored encrypted on your device, and you can export an encrypted backup file you own.
What can I track?
Anything you take on a schedule: supplements, vitamins, medications, peptides, GLP-1s and TRT — plus habits, weight, lifts and bloodwork alongside your doses.
Does Stack give dosing advice?
No. Stack is a logging tool and an educational reference. It never recommends compounds or doses, and nothing in the app or on this site is medical advice.
When does it launch?
Android first, very soon — iOS after. Email us and we'll tell you the moment it's live.
Your protocol deserves
a better logbook.
Free to track. Private by default. Built for stacks, not single pills.
Tell us what to build next
Bugs, ideas, love notes — we read every message and reply.