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.
EchoSource (from the creators of ECGsource and CathSource) is a medical reference devoted exclusively to echocardiography
$1.99 · 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 EchoSource: map the core Medical 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 features and functionality compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: User interface is not user-friendly
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: App crashes on some devices
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lacks comprehensive reporting and analytics
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.
EchoSource (from the creators of ECGsource and CathSource) is a medical reference devoted exclusively to echocardiography. Developed by practicing cardiologists for both specialists and trainees in the field of cardiovascular disease, EchoSource offers the following content: * Searchable index of specialized topics including: History of Echocardiography Transthoracic Echo – Learning the Procedure Transesophageal Echo – Learning the Procedure Standard Transthoracic Echocardiography Views Standard Transesophageal Echocardiography Views Hemodynamics: Doppler Overview Hemodynamics: Color Flow Imaging Hemodynamics: Transvalvular Gradients Hemodynamics: Intracardiac Pressures Hemodynamics: Cardiac Flow & the Continuity Equation Hemodynamics: Proximal Isovelocity Surface Area (PISA) Left Ventricle: Systolic Function Left Ventricle: Diastolic Function Valvular: Aortic Stenosis Valvular: Aortic Regurgitation Valvular: Mitral Stenosis Valvular: Mitral Regurgitation Valvular: Pulmonic Stenosis Valvular: Pulmonic Regurgitation Valvular: Tricuspid Stenosis Valvular: Tricuspid Regurgitation Valvular: Prosthetic Valves Clinical Disorder: Aortic Dissection Clinical Disorder: Atrial Septal Defect Clinical Disorder: Constrictive Pericarditis vs. Restrictive Cardiomyopathy Clinical Disorder: Hypertrophic Cardiomyopathy Clinical Disorder: Intracardiac Masses - Endocarditis & Vegetations Clinical Disorder: Intracardiac Masses - Thrombus Clinical Disorder: Intracardiac Masses - Tumors Clinical Disorder: Pericardial Effusion Clinical Disorder: Pseudoaneurysm Clinical Disorder: Pulmonary Artery Hypertension Clinical Disorder: Subaortic Membrane Clinical Disorder: Ventricular Septal Defect * Searchable database consisting of more than 90 figures, images, and echocardiography videos of both common and rare findings in the field of echocardiography EchoSource provides a detailed overview of clinical disorders and their evaluation using echocardiography, incorporating educational figures and videos as well as reviews of pertinent medical literature. Whether you are a beginner just learning standard echocardiography imaging views, or a practicing clinician needing a quick reference to guideline-based echocardiographic criteria for diagnosing the severity of valvular heart disease, EchoSource is the ideal application to assist you.
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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.