App Overview

PeptideJournal icon

PeptideJournal

Christopher Madrid · Health & Fitness

PeptideJournal — Precision Peptide Dosing, Scheduling, Inventory, and Tracking

$5.99 · In-app purchases

PRICE
$5.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.3
20 ratings · Top 30%

Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.

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Build Kit

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A product spec, screen plans, and build steps for your coding agent.

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What's included17 files

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

Feature spec

Goal: Send a clear invoice after finishing a job.

  • Add a client, line items, a due date, and payment instructions.
  • Preview the total before exporting a PDF.
  • Keep an editable draft if export fails.

Screen plan

Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.

States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.

Differentiate and validate

Hypothesis: Contractors need faster repeat invoices more than more templates.

First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.

The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.

Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.

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Quick prompt

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for PeptideJournal: map the core Health & Fitness workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

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Opportunities

AI-GENERATED OPPORTUNITY HYPOTHESES

These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.

Hypothesis 1

Add support for user-defined peptide categories and tracking.

Assumption to check: Limited tracking options for different peptides.

Validate with people who use this workflow before building.

Hypothesis 2

Implement a clearer value proposition for subscriptions.

Assumption to check: Subscription model can be confusing for users.

Validate with people who use this workflow before building.

Hypothesis 3

Introduce social features like sharing progress and challenges.

Assumption to check: Lack of community features for user engagement.

Validate with people who use this workflow before building.

Hypothesis 4

Simplify and streamline UI for better navigation.

Assumption to check: User interface can feel cluttered.

Validate with people who use this workflow before building.

App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

App Store description

PeptideJournal — Precision Peptide Dosing, Scheduling, Inventory, and Tracking DESCRIPTION: PeptideJournal is a private, precision tracking app for peptide dosing, inventory, historical dose/data tracking and scheduling. Designed for individuals who value accuracy, consistency, and control, all data stays securely on your device with privacy as a core principle. KEY FEATURES: Precision Dose Calculator – Calculate exact doses with an interactive syringe gauge. Supports mg/mcg conversion with real-time volume calculation based on your vial concentration, plus weight logging. Reconstitution Simulator — Plan your reconstitution before mixing. Calculate concentration and doses based on vial size, BAC water volume, and peptide amount. Flexible Reconstitution – Supports single peptides and multi-peptide blends (combo vials) with precise reconstitution and individual component dose calculations. Inventory Management – Track single vials or combo vials (Blends) with accurate remaining volume and dose counts. Swipe to refill, archive, or repeat doses. Dose Entry History – Comprehensive records with timestamps, injection sites, notes, side effects, and benefits tracking. Usage Analytics – Monitor patterns, weight trends, and usage consistency over time. Dashboard Overview – Quick glance at today's scheduled doses, tomorrow's preview, and low-stock alerts. Smart Scheduling – Create flexible schedules: daily, specific days of week, custom on/off cycles, or every X days intervals. Set multiple doses per day with optional notifications. Tap notification banners to instantly log doses and track adherence. Calendar Integration – Visual calendar with scheduled and logged doses, reminders, and schedule management. Advanced Vial Tracking – Multiple vials of the same peptide are tracked independently for maximum accuracy. Complete Privacy – All data stays local on your device. No account required, no subscriptions, no data collection, no external servers. Import & Export – CSV import/export for backup and data portability. Native iOS Design – Built exclusively for iOS with SwiftUI and SwiftData. PERFECT FOR: Personal record keeping Tracking usage patterns Monitoring inventory levels Maintaining detailed logs Scheduling and adherence tracking Managing complex protocols Secure data management IMPORTANT MEDICAL DISCLAIMER: PeptideJournal is a personal tracking and logging tool only. It does not provide medical advice, diagnosis, or treatment recommendations. Always consult qualified healthcare professionals before making any medical decisions. This app is for personal record-keeping purposes only. PRIVACY & SECURITY: Your personal data never leaves your device. No account required, no subscriptions, no data collection, no external servers. Download PeptideJournal today and start your personal tracking journey with confidence and privacy.

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Screenshots

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Build scope

Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.

Define the first version

Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.

Set boundaries

Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.

Check the hard parts

Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.

SUGGESTED BUILD STACK
React Native
Expo
Supabase
react-native-chart-kit
react-hook-form
expo-router
BUILD KIT DIFFICULTY
Intermediate

From the Build Kit assessment.

A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.