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
Eastland Herb–Chinese Medicine
Instantly find the information you need about Chinese herbs and formulas with this app from the authors of Chinese Herbal Medicine: Materia Medica and Formulas & Strategies, the most trusted and widely-used profession...
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.9
621 ratings · Top 5%
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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included18 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
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 Eastland Herb–Chinese Medicine: 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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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Instantly find the information you need about Chinese herbs and formulas with this app from the authors of Chinese Herbal Medicine: Materia Medica and Formulas & Strategies, the most trusted and widely-used professional references in the field. KEY FEATURES • Completely rebuilt to provide better navigation and powerful search by symptoms, findings, actions, and diagnosis. • Herbs and formulas are searchable by English, pinyin, or Chinese name. • In-depth analysis of over 530 of the most commonly used herbs, and over 800 formulas, drawn from dozens of classical and modern Chinese sources. • Virtually all the content of Chinese Herbal Medicine: Materia Medica and Formulas & Strategies AUTHORS Dan Bensky Volker Scheid Steven Clavey Randall Barolet Erich Stoeger Andrew Ellis Andrew Gamble Lilian Lai Bensky (illustrations) App development by Phil Mitchell. Eastland Herb logo designed by Xie Keqing. CONTACT For questions about the app, contact Eastland Press at [email protected].
Written user reviews are not shown here. Check current App Store reviews >
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
Provide detailed articles and user-generated content.
Assumption to check: Limited information on herbal remedies
Validate with people who use this workflow before building.
Hypothesis 2
Simplify the user interface for managing subscriptions.
Assumption to check: Complicated subscription management
Validate with people who use this workflow before building.
Hypothesis 3
Improve search functionality and filtering options.
Assumption to check: Difficulty in finding specific remedies
Validate with people who use this workflow before building.
Hypothesis 4
Incorporate forums or Q&A sections for user interaction.
Assumption to check: Lack of community engagement features
Validate with people who use this workflow before building.
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-navigation
axios
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.
