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
Geriatrics At Your Fingertips
Geriatrics At Your Fingertips® (GAYF) is an essential tool for all healthcare providers and trainees who care for older adults
Free
PRICE
Free
No in-app purchases
BUSINESS MODEL
Free
No overall Grossing estimate available
RATING
★ 4.9
332 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 included16 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 Geriatrics At Your Fingertips: 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
Implement local storage for offline access.
Assumption to check: Limited offline access to guidelines
Validate with people who use this workflow before building.
Hypothesis 2
Add user profiles for personalized content.
Assumption to check: No personalization options
Validate with people who use this workflow before building.
Hypothesis 3
Optimize search with indexing and caching.
Assumption to check: Search functionality can be slow
Validate with people who use this workflow before building.
Hypothesis 4
Introduce interactive decision-making tools for users.
Assumption to check: Lack of interactive tools
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
Geriatrics At Your Fingertips® (GAYF) is an essential tool for all healthcare providers and trainees who care for older adults. It contains specialized, up-to-date evaluation and management strategies for common geriatric conditions and disorders. Last updated in 2026, Geriatrics At Your Fingertips (GAYF) for iOS contains the latest content, published by the American Geriatrics Society (www.americangeriatrics.org). Find quick answers to your geriatric assessment and treatment questions with: • Free content updates for the duration of your subscription • Over 100 medications tables, searchable by generic or trade names • Easy-to-use algorithms • Assessment instruments that calculate responses • Fast, omnipresent search function • Calculators for commonly used formulas and equations • A bookmark feature for frequently referenced content • Links to useful resources and websites Purchase an annual subscription, so you always have the latest information. • For only $19.99, a subscription gives you access to the latest GAYF® content for 1 full year. • Your subscription automatically renews every year, so you always have the latest content. Privacy Policy - https://www.americangeriatrics.org/legal/privacy_policy Terms of Use - https://geriatricscareonline.org/static/terms
Written user reviews are not shown here. Check current App Store reviews >
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
Supabase
react-navigation
react-native-paper
Zustand
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.
