What your body’s actually doing between doses.

Your estimated compound level with your Apple Health resting heart rate and HRV under it, on the same days. When a pattern repeats after a dose, the app tells you in one sentence.

PinPal home screen: a sentence about resting heart rate after each retatrutide dose, above a timeline of estimated level, resting heart rate and HRV.
  • PinPal home screen lower half: two doses due today with Log dose buttons, then the four compounds in the stack with amount and frequency.

    Today's doses, one tap to log each.

  • PinPal Day by day table: one row per day with dose, estimated level, resting heart rate, HRV and hours of sleep.

    Every day behind the timeline, as numbers.

Everything between your doses.

  • Compound level between doses

    An estimated level for every compound, drawn from its published half-life.

  • Apple Health on the same days

    Resting heart rate and HRV sit under the level, so a dose and what followed it line up.

  • A finding in one sentence

    When your resting heart rate runs higher after each dose, Home says so and counts the nights it used.

  • A peptide library

    31 peptides, each with its half-life, studied ranges and the papers behind them.

  • 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
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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 and BHRT timing
  • Symptom-by-week predictions cited from Phase 3 trials and 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 and 365-day Apple Health history
Start your free trial

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Questions.

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  • 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. It does not diagnose, treat, or prescribe.

  • 31 curated peptides covering GLP-1s, healing, growth, and cosmetics, with cited dose ranges and half-lives. Custom protocols such as TRT and HCG 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 imports the rest when you upgrade.

  • Yes. Log your cycle alongside doses and biomarkers and see them on the same timeline. Useful if you run GLP-1s or BHRT and want 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.