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.
The book that serves as the basis for the popular “Harrison’s Podclass” podcast series!
$84.99 · 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 Harrison's Board Review, 20/E: 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: Users may struggle with navigation due to numerous features.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited interaction with content may lead to low engagement.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: High subscription price may deter users.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of community features can isolate users.
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.
The book that serves as the basis for the popular “Harrison’s Podclass” podcast series! This outstanding collection of internal medicine Q&A is perfect for prepping for board or shelf exams, getting in multiple “reps” of self directed learning, and increasing your understanding of clinical reasoning. It’s packed with 1,000+ high-quality clinical vignettes, with expert, on-point explanations for correct and incorrect answers. Harrison’s Principles of Internal Medicine Self-Assessment and Board Review reflects all the specialties of internal medicine, and has been exhaustively revised and updated to reflect hundreds of never-before published Q&A in board-style format. This great resource will bolster your understanding of pathophysiology, epidemiology, differential diagnosis, clinical decision making, and therapeutics. Illustrations, radiographs, and pathology slides are included throughout. Each question is accompanied by a complete answer and explanation, and cross-referenced to Harrison’s Principles of Internal Medicine for deeper-dive understanding. Features: • 325 full-color photos and illustrations • Clinical vignettes and Q&A presented in board-style format • Content consistent with board exam blueprint in internal medicine • Aligned with Harrison’s Principles of Internal Medicine, the global authority in medicine •Explanations for correct and incorrect answer choices This app is very intuitive and easy to navigate, allowing you to browse the contents or search for topics. The powerful search tool gives you word suggestions that appear in the text as you type, so it is lightning fast and helps with spelling those long medical terms. The search tool also keeps a recent history of past search terms so you can go back to a previous search result very easily. You have the ability to create notes and bookmarks separately for questions to enhance your learning. You can also change the text size for easier reading. After the app has been downloaded, no internet connection is needed to retrieve the content of the app. All of the text and images are available to you on your device anytime, anywhere, and lightning fast. This app is also automatically optimized for whatever size device you are currently using, either phone or tablet. This interactive app contains the full content of Harrison's Principles of Internal Medicine Self-Assessment and Board Review, 20th Edition by McGraw-Hill Education. ISBN-13: 978-1259642883 ISBN-10: 1259642887 Editors: Charles M. Wiener, MD Catherine H. Marshall, MD Laura C. Cappelli, MD, MHS Brian Houston, MD Brian T. Garibaldi, MD, MEHP Sara C. Keller, MD, MPH, MSHP Disclaimer: This app is intended for the education of healthcare professionals and not as a diagnostic and treatment reference for the general population. Developed by Usatine Media Richard P. Usatine, MD, Co-President, Professor of Family & Community Medicine, Professor of Dermatology and Cutaneous Surgery, University of Texas Health San Antonio
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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.