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
Prepry - Top 200 Drugs
Study after study has shown that Spaced Repetition is the most effective method of learning
$4.99 · In-app purchases
PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
1 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.
Build your own version
Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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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/
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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 Prepry - Top 200 Drugs: map the core Health & Fitness 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
Incorporate detailed drug interactions and user reviews.
Assumption to check: Limited drug information compared to other resources.
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to download drug info for offline use.
Assumption to check: No offline access to drug information.
Validate with people who use this workflow before building.
Hypothesis 3
Enable users to customize favorites and notifications.
Assumption to check: Lack of user customization options.
Validate with people who use this workflow before building.
Hypothesis 4
Implement advanced filters and sorting options for better search results.
Assumption to check: Limited search functionality.
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
Study after study has shown that Spaced Repetition is the most effective method of learning. Our quizzes and flashcards are fun and powered by an intelligent spaced repetition algorithm that adaptively adjusts to your knowledge levels based on what you need help with. This high-value educational tool is designed to help students preparing for standardized exams (e.g., NAPLEX, BCPS, PTCB, ExCPT, PANCE/PANRE, NCLEX, USMLE, COMLEX) or students (Nursing, Medical or Pharmacy) looking to master the top 200 drug Brand Names, Generic Names, Most Common Indications, and Pharmacological classes. FEATURES: • Learn, review, and master questions with our spaced repetition algorithm. • 200 of the most commonly prescribed prescription medications • Organized by Brand Names, Generic Names, Most Common Indications, and Pharmacological classes. • Question of the Day • Build custom quizzes • Flashcards • Drug reference guide • Study reminders • Exam day countdown
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
React Navigation
Axios
Async Storage
TypeScript
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.
