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.
App Overview
ECHO Views - Transesophageal Echocardiography
ECHO Views - Transesophageal Echocardiography Atlas
$9.99 · In-app purchases
PRICE
$9.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.4
38 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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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.
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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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for ECHO Views - Transesophageal Echocardiography: 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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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
Expand content library with user-generated submissions.
Assumption to check: Limited content variety for procedures.
Validate with people who use this workflow before building.
Hypothesis 2
Offer more free resources to attract users.
Assumption to check: High subscription price without sufficient free content.
Validate with people who use this workflow before building.
Hypothesis 3
Simplify navigation and enhance user experience.
Assumption to check: Cluttered UI with too many options.
Validate with people who use this workflow before building.
Hypothesis 4
Introduce forums or discussion boards for users.
Assumption to check: Lack of community features for peer interaction.
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
ECHO Views - Transesophageal Echocardiography Atlas A Detailed Atlas of 28 ECHO Views of the Comprehensive Perioperative TEE and Associated Structures Featured by Apple in the Medical Section of iTunes • "New & Noteworthy." Brought to you by iAnesthesia LLC, the leading developer of mobile healthcare solutions for anesthesia and critical care providers. ECHO Views is a quick reference tool developed for the beginning to intermediate echocardiographer. This iPhone, iPod, and iPad Transesophageal Echocardiography Atlas highlights the 28 most common TEE views used in a comprehensive perioperative TEE exam. With labels of all significant anatomic structures as well as a brief explanation of the highlights of each view; ECHO Views is the perfect quick reference for the occasional gaps in your TEE knowledge. By organizing the views by important cardiac structures, ECHO Views allows users to find alternate views for particular structures of interest quickly. *** Features*** - No internet connection required - Excellent tool for teaching residents and fellows. - The ability to hide and show labels allows users to quiz themselves on their echocardiographic anatomic knowledge. - Does not cover doppler and echo hemodynamics at this time but can be added if wanted by enough students. -Includes NEW Quiz features to test your knowledge of the views and structures. Over 30 Anatomic Structures Highlighted including: - A1, A2, A3 & P1, P2, P3 Scallops of Mitral Valve - Ascending Aorta - Aortic Valve - Coronary Sinus - Descending Aorta - Inferior Vena Cava - Intra-atrial Septum - Left Atrium - Left Coronary Cusp - Left Pulmonary Artery - Left Ventricle - Left Ventricular outflow tract - Left Atrial Appendage - Left Ventricle wall segments - Main Pulmonary Artery - Mitral Valve - Non-coronary cusp aortic valve - Papillary muscle - Pulmonic Valve - Right Atrium - Right coronary cusp aortic valve - Right pulmonary artery - Right ventricle - Right ventricular outflow tract - Superior vena cava - Tricuspid Valve
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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
FastAPI
axios
react-navigation
react-native-video
BUILD KIT DIFFICULTY
Starter
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.
