What your body’s actually doing between doses.

Your pharmacokinetic decay curve and your Apple Health biomarkers, plotted on the same timeline. Tap a dose; see what changed.

PinPal: the Retatrutide pharmacokinetic decay curve with the user's Apple Health weight trend on the same timeline.
  • PinPal Daily Insights reading the week's biomarkers against the published literature — a resting-heart-rate rise interpreted as on-profile for retatrutide citing Eli Lilly's Phase 2 trial, and a glucose shift attributed to the luteal phase citing Brennan 2009.

    Reads your week. Cites the trial.

  • PinPal GHK-Cu detail page showing its pharmacokinetic decay curve over a week of doses, with the estimated concentration plotted against time.

    Every compound gets its own decay curve.

  • PinPal Tirzepatide detail page showing the FDA Approved Phase 3 RCT evidence badge and Conservative / Standard / Aggressive studied ranges, each sourced to Eli Lilly's SURMOUNT-1 trial.

    Evidence tier and studied ranges, all sourced.

Everything between your doses.

  • Pharmacokinetic decay curves

    See the active level of every compound between doses — not just the day you injected.

  • Apple Health on the same timeline

    Resting heart rate, HRV, sleep, glucose and weight overlaid directly on the decay curve.

  • Cited daily insights

    Your week, read against the literature — every claim sourced to a published trial.

  • A library that cites its work

    31 peptides, each with an evidence tier and a citation checked against the real paper — not a made-up one.

  • Chat that knows your stack

    Ask anything about your protocol; answers stay grounded in the peptide literature.

  • Reconstitution math

    Convert a vial's mg strength into syringe units in seconds. Units, not dosage advice.

Free for one. Pro for the whole stack.

Free
$0forever

One protocol, kept simple.

  • 1 active protocol
  • Apple Health biomarker overlay on its decay curve
  • Dose logging and reminders
  • Symptom and weight check-ins
  • Reconstitution math helper
  • 30-day rolling history
Download free
Pro · 1-week free trial
$34.99per year

or $1.99/week.

  • Cycle-aware interpretation — luteal-phase glucose shifts, BHRT timing, symptom patterns
  • Symptom-by-week predictions cited from Phase 3 trials + FDA labels
  • Daily, weekly, and monthly AI reads of your protocol
  • Multi-peptide biomarker overlay across every active curve
  • Chat that remembers your stack and your last 7 days of symptoms
  • Unlimited protocols + 365-day Apple Health history
Start your free trial

Cancel anytime. Read our Terms and Privacy.

Questions.

Still have one?[email protected]
  • Decay curves for every protocol you run, with your Apple Health biomarkers (HRV, RHR, weight, sleep) overlaid on the same timeline. Tap a dose; see what changed.

  • No. It's a tracking and information tool. Doesn't diagnose, treat, or prescribe.

  • 31 curated peptides covering GLP-1s, healing, growth, and cosmetics, with cited dose ranges and half-lives. Custom protocols like TRT, HCG, and HGH work too.

  • Yes. Paste your protocol history straight from Apple Notes, a Google Doc, or any other tracker. PinPal extracts the doses, dates, weight checks, and BP readings, and turns them into a live timeline. Free accounts import one protocol. Pro replays the rest from staging the moment you upgrade.

  • Yes. Log your cycle alongside doses and biomarkers and see them on the same timeline. Useful for anyone running GLP-1s, BHRT, or aesthetic peptides who wants to spot timing patterns.

  • Yes — indirectly. Cal AI and MyFitnessPal write calories and macros to Apple Health; PinPal reads them alongside your HRV, weight, and sleep in your Journal timeline.

  • It stays on your device. PinPal reads HRV, RHR, weight, and sleep locally to overlay on your decay curves. Biomarker values are never sent to our servers.