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
Study Deck: Memory Flashcards
Stop juggling messy notes and scattered study materials
$3.99 · In-app purchases
PRICE
$3.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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 included15 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 Study Deck: Memory Flashcards: map the core Productivity 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
Include a guided study mode with spaced repetition.
Assumption to check: Users struggle with memorization techniques and organization of cards.
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to customize card colors and fonts.
Assumption to check: Limited customization options for flashcards.
Validate with people who use this workflow before building.
Hypothesis 3
Enable sharing and collaboration on decks with other users.
Assumption to check: No collaboration features for shared decks.
Validate with people who use this workflow before building.
Hypothesis 4
Incorporate gamification elements like points and achievements.
Assumption to check: Users find the app lacks engagement features.
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
Stop juggling messy notes and scattered study materials. Study Deck helps you turn any subject into organized, powerful memory cards—so you can learn faster, track your progress, and actually remember. Create Unlimited Decks & Cards Whether you're studying medicine, learning a language, or preparing for finals, build custom decks for every subject. Add your own memory cards, tailor each fact, and learn at your own pace. Visualize Your Progress Knowledge should be measurable. See exactly how well you're doing with clear graphs and percentage scores. Watch your retention grow and know when you've truly mastered a topic. Stay Consistent with a Personal Study Calendar Motivation fades—habits stick. Keep track of every study session, see which subjects you studied each day, and build a streak you're proud of. No more guessing if you're on track. Simple. Flexible. Yours. No ads, no distractions, no limits. Just you, your cards, and a smarter way to learn. Terms and Conditions & Privacy Policy: https://github.com/estersr/App-Policies
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
Zustand
React Navigation
TypeScript
BUILD KIT DIFFICULTY
Starter
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.
