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.
PeptideCalc.io is a private peptide, GLP-1, TRT, and medication protocol tracker with calculators for user-entered reconstitution values, syringe units, schedules, reminders, dose logs, inventory tracking, insights, e...
$4.99 · In-app purchases
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Peptide Tracker Calculator: 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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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
Assumption to check: Limited calculator options compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: User interface can be overwhelming for new users
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of social features
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No customization options for calculators
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
PeptideCalc.io is a private peptide, GLP-1, TRT, and medication protocol tracker with calculators for user-entered reconstitution values, syringe units, schedules, reminders, dose logs, inventory tracking, insights, exports, and optional iCloud sync. CALCULATORS & TRACKING • Reconstitution calculator for custom vial values you enter • Syringe-unit and concentration tools for custom vials, premixed vials, injector pens, oral meds, liquid meds, and IU workflows • Multi-compound support with proportional unit conversions • Reference presets for common GLP-1, TRT, hormone, peptide, and supplement workflows • Common syringe formats including U-100, U-50, U-40, U-30, and 1-5 mL Luer-Lock options • Visual syringe guide based on your entered vial, concentration, and amount values • Save protocols and reuse your own entered details PROTOCOLS & SCHEDULES • Save, duplicate, favorite, search, and sort protocols and schedules • Inline edits with instant updates • Create schedules from saved protocols with start and end dates • Multiple times per day with flexible cadences: daily, weekdays, every N days/weeks, monthly, or cycling windows • Titration planning tools for schedules you define • Multiple schedules per protocol, color-coded and sortable • Dose reminders with optional time-sensitive notifications CALENDAR, LOGGING & INVENTORY • Calendar view plus pending doses list • Log scheduled or as-needed doses with injection site, method, notes, and timestamps • Custom injection sites with last-used hints • Mark doses done, missed, or skipped • Adherence metrics, streaks, and protocol filters • Track vials, pens, pills, liquids, and syringe supplies • Runout estimates and low-stock alerts based on your schedules or logs INSIGHTS • Biometrics dashboard for weight, body composition, sleep, heart rate, blood pressure, glucose, labs, mood, energy, hunger, libido, recovery, and custom metrics • Manual entries and optional Apple Health import • Trend charts with 7/30/90/180/365-day views • Dose overlay charts for comparing your logged doses, schedule changes, and biometric trends • Half-life and medication-level charts based on your saved protocol data • Protocol filters and summaries to compare trends over time BACKUP, SYNC & SHARING • Optional iCloud sync across devices • Automatic local backups with restore points • Import backups for protocols, schedules, logs, injection sites, inventory, and insights data • Export protocols, schedules, logs, and dose history to JSON, CSV, or PDF PERSONALIZE • Dark, light, system, or many custom themes • Locale-aware decimal input and haptic feedback • Celebration effects for consistency milestones • Use offline without an account; iCloud sync optional PRIVACY • Use without creating an account • Personal tracking data stays on device unless you enable iCloud sync • Apple Health imports stay on device Important: PeptideCalc.io is an informational utility only. It does not diagnose conditions, prescribe treatment, recommend medications, recommend dosages, choose schedules, or determine whether any dose is appropriate. Always verify values independently and consult a qualified healthcare professional before making medical decisions.
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Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.