Research use only — peptides are not for human consumption.
30-day free trial — no credit card required

Your peptide research,
finally organized.

Log doses, track inventory, model serum levels, and monitor your progress — all in one focused companion app. Built for real protocols, multi-peptide stacks, and day-to-day consistency.

Private by design
Serum level modeling
Run-out forecasting
Today
Sample Preview
  • Retatrutide
    logged
    Dose 1.5 mg
    Units 30 u
    Site Abdomen
  • BPC-157
    skipped
    Dose 250 mcg
    Units 5 u
    Site L. Thigh
  • TB-500
    pending
    Dose 2 mg
    Units 40 u
    Site R. Thigh

Everything you need to run a real protocol

A focused suite of tools built for the full research workflow — from setup and daily logging to forecasting and analysis. All features included.

Daily Dose Logging

One tap to log or skip each dose. Tracks dosage, syringe units, injection site, and time of day. Add unscheduled ad hoc doses whenever needed.

Calendar View

A full month grid with color-coded day badges — green when all doses are taken, red if any were skipped. Tap any day to review its complete dose log.

Inventory Management

Track both vials and capsules. Enter vial count, mg per vial, and BAC water volume to auto-calculate concentration and remaining doses for every compound.

Protocol Builder

Build named protocol groups with flexible schedules: every day, specific days of the week, or custom on/off cycles. Generates a full 12-month dose plan automatically.

Serum Level Chart

Visualize estimated serum concentrations using half-life decay modeling. Plots 21 days of history plus 14 days of projections at 12-hour resolution — one line per peptide.

Run-out Forecasting

See weekly usage rate, days remaining, and projected depletion date for each compound. Status alerts (ok / low / empty) keep you ahead of your next reorder.

Weight Tracking

Log your weight with optional notes and visualize trends on a line chart. Track progress over time alongside your active protocol.

Vials & Capsules

First-class support for both injectable and oral peptide formats. Each inventory type has its own unit math so run-out estimates are always accurate.

Privacy First

Your research data stays yours. We collect only what's necessary to run the app and will never sell or share it with anyone.

Simple, reliable workflow

From first setup to daily logging in minutes. No learning curve, no spreadsheets.

  1. 01
    Build your protocol

    Add peptides to inventory, set mg per vial and BAC volume, then create a protocol with your preferred schedule. Takes under two minutes.

  2. 02
    Log doses daily

    Tap to mark each dose taken, along with injection site. Skip when needed. Inventory, calendar, and forecasts all update automatically.

  3. 03
    Analyze your data

    Review serum level curves, run-out timelines, and weight trends on the Stats page. Know exactly when to reorder and how your stack is performing.

Simple, transparent pricing

One plan. Every feature. Cancel anytime.

30-Day Free Trial
$3.99/ month

after your free trial. No credit card required to start.

Start Free Trial
  • Unlimited peptides
  • Daily dose logging with injection site tracking
  • Calendar view with compliance history
  • Vial & capsule inventory with concentration calculator
  • Protocol builder — ED, custom days, on/off cycles
  • Serum level chart with half-life decay modeling
  • Run-out forecasting with depletion alerts
  • Weight tracking & trend chart
  • 30-day free trial, cancel anytime

Frequently asked questions

How does the free trial work?

You get 30 days of full access with no credit card required. At the end of your trial, you can subscribe for $3.99/month to keep your data and access. No surprise charges.

What's included in the subscription?

Everything — daily logging, calendar, inventory (vials and capsules), protocol builder with cycles, serum level chart, run-out forecasting, and weight tracking. One plan, no feature gates.

How does the serum level chart work?

The chart models estimated serum concentrations for each peptide using half-life decay. It plots 21 days of history and projects 14 days forward at 12-hour resolution, so you can see how compounds overlap and taper.

Can I cancel anytime?

Yes. Cancel from your account settings at any time and you won't be charged again. Your data remains accessible for the rest of your billing period.

Can I track both injections and oral peptides?

Yes. Inventory supports both vials (with BAC water volume and auto-calculated concentration) and capsules. Both types feed into your dose log and run-out forecasts.

Does this replace my provider?

No. Peptide Planner is a research companion for planning, logging, and inventory management — not a source of medical advice or a connection to peptide vendors.

Start your free trial today

30 days free, no credit card required. Then just $3.99/month — less than a cup of coffee.