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
UpToDate Lexidrug
UpToDate® Lexidrug™ is the preferred drug reference app, providing industry-leading drug information and tools that support safe and effective medication and therapeutic decisions.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
5,986 ratings · Top 15%
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'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 UpToDate Lexidrug: 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
UpToDate® Lexidrug™ is the preferred drug reference app, providing industry-leading drug information and tools that support safe and effective medication and therapeutic decisions. View the latest clinical information updated daily by our unparalleled multidisciplinary editorial team that continually reviews the most current evidence available. Used and trusted by pharmacists, physicians, nurses, advanced practice nurses, dentists, and students as an invaluable referential resource. Easily access Lexidrug content directly in the app without needing to download databases onto your device. Our mobile packages are designed to support a variety of roles, offering quick access to expert content and capabilities, including: • In-depth drug databases with detailed dosing support • Comprehensive monographs with adverse reactions information • Hundreds of medical calculators • Interactive drug interactions checker • Ability to store database content for offline use New individual users will receive a one-month free trial to the UpToDate Lexidrug Hospital Pharmacist package. At the end of the free trial, users will automatically be billed a subscription fee of $29.99 per month via their iTunes Account for continuing access. To avoid being charged, users must cancel their free trial at least 24 hours before the end of the trial period. Users can manage settings, cancel subscriptions, or turn off auto-renewal anytime during the subscription period via iTunes Account Settings. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable.
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
Expand database and provide more detailed drug profiles.
Assumption to check: Limited drug information compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Standardize UI components for a cohesive look.
Assumption to check: Inconsistent user interface design
Validate with people who use this workflow before building.
Hypothesis 3
Improve search functionality with filters and categories.
Assumption to check: Difficulty in finding specific drugs or information
Validate with people who use this workflow before building.
Hypothesis 4
Add offline access for drug information.
Assumption to check: Limited offline capabilities
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
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react-native-reanimated
BUILD KIT DIFFICULTY
Expert
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.
