StackComing soon to theApp Store

150 compounds222 verified studiesiPhone + web

Your protocol, tracked properly.

Built for peptides, GLP-1s and hormone protocols. The dose is logged in a tap, the schedule is never in doubt, and your weight, bloods and sleep sit next to the protocol that moved them.

Coming soon to theApp StoreSee what it does

Free to start. Also runs in any browser. For research and educational use only; not medical advice.

The Today screen: good afternoon greeting, week strip, next dose vial and tonight's schedule

Track

What you took, what is left, what is in you.

Three things the app never lets you lose track of.

Doses

2 mg tonight, 80 units drawn. Every dose is worked out from your vial and your syringe before you log it. Tap once and it is on the record.

Today's schedule with Tesamorelin 2 mg, 80 IU, and a Done state

Vials

5.2 mg left, runs out Monday. Doses draw the vial down, refills reset it, and the app tells you weeks ahead when to reorder.

Vial management: three rendered vials with milligrams left and doses remaining

Levels

Cleared since your last dose. Each logged dose feeds a half-life model, so what is in your system right now is a chart, not a guess.

Tesamorelin level over time, with the next dose marked

The whole picture

Not just a dose tracker.

Logging the injection is the easy part. This app also carries what you eat, what your body weighs and measures, what your bloods say and how you sleep, so the question it can answer is the one that matters: is the protocol working?

Protocol

Doses, vials, modelled levels, cycling and rest phases.

Food

Scan a plate or a label; calories and macros land against your day.

Body

Weight, body fat from a camera scan, lean mass, all on one timeline.

Bloods and sleep

Lab markers on their reference ranges. Sleep and recovery from your wearable.

Wearables

Connects to the devices you already wear.

Sleep, recovery and weight fill themselves in and sit against your protocol, so when a number moves you can see what you were running when it did.

Apple Watch
through Apple Health on iPhone: sleep, activity, weight, heart rate
Oura
sleep, readiness and temperature
Next
WHOOP and Withings smart scales.

Your data

Watch your body respond.

The protocol is half the picture. The other half is what your body does with it, lined up against what you were running when it changed.

Weight
83.9 kg
Body fat
11–15 %
Sleep
6.7 h
Nutrition
380 kcal

Weight, body composition, sleep and food, with Apple Health sync on iPhone.

Health overview: weight since starting, body fat, sleep and nutrition
Weight over the last 90 days with the log-today field
Insights: your data in patterns

Body scan

Track body fat with your camera.

Stand in front of a mirror, take a front and a side shot. You get a body-fat range with the reasons behind it, and each scan sits beside your weight so the trend is one line, not two.

The body-scan viewfinder: front view, stand square to the camera
The estimate: a body-fat range with observations, ready to adjust and save

Food scan

Point at the plate. Logged.

Scan the plate or the label. Calories, protein, carbs and fat come back in seconds with the portion assumption written out, so you can correct it before it counts against your day.

The food-scan viewfinder over a plate of salmon, rice and broccoli
The estimate: calories and macros with the portion assumption, ready to save

Bloodwork

Know what your bloodwork says.

Feeling good and testing well are not the same thing.

Markers
Every value against its reference range
Draws
W6, W12, W16, W24, W32, W40, W52
Trends
The line, not just the last number
Privacy
Your rows, your account, never sold
Bloodwork: LDL, testosterone, haemoglobin and fasting glucose on their reference ranges
Ask about your data: questions answered from your own logs

Then ask.

Nothing to paste in. It already holds your doses, your weights and your panels, and it answers from those, described, never diagnosed.

  1. 1How is my adherence?
  2. 2What changed since I started?
  3. 3When does this vial run out?
Compounds library, browsed by goal
Tesamorelin: FDA approved, WADA banned, your use in one sentence
Benefits, cautions from the package insert, and the level after a dose

Library

Every compound, sourced.

150 compounds across 11 categories. Half-lives, routes, doses, cycling, and the cautions from the package insert, with 222 PubMed studies checked against their source.

  • Provenance on every claim. Package insert, peer-reviewed paper, or marked unverified. Nothing is ranked.
  • Safety as a picture. Reported effects sit on a rare-to-common track, so you see the shape before the list.
  • The law, kept current. Regulatory changes appear on the Safety page the week they land.

Log tonight's dose in seconds.
Then see whether it is working.

Questions

Quick answers.

Anything else: privacy@getstack.app

Is this medical advice?

No. Every claim is sourced and every number is yours, but the app describes, it does not diagnose. You and your clinician decide.

Do you sell peptides?

No. We do not source, sell or ship anything, and we take no money from anyone who does.

Where is my data kept?

In your own account, encrypted in transit and at rest. We do not sell it or share it with third parties. Delete your account and the data goes with it.

Which phones?

iPhone, with Apple Health sync and dose reminders. Until the App Store listing is live the same app runs in any modern browser, and your data carries over.

What does it cost?

Free to start. The plan details are in the app, and nothing is charged without you choosing it.

Your protocol, handled.

Start with your next dose. Everything else follows from it.

Coming soon to theApp StoreSee what it does