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
AP Chemistry Quiz & Cards
AP Chemistry Review & Exam Practice
$7.99 · In-app purchases
PRICE
$7.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
22 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's included17 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 AP Chemistry Quiz & Cards: map the core Education 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
Regularly update quizzes and flashcards with new content and topics.
Assumption to check: Users may find the content outdated or limited in scope.
Validate with people who use this workflow before building.
Hypothesis 2
Implement a more intuitive navigation flow with clear labels and icons.
Assumption to check: Some users may struggle with the navigation structure.
Validate with people who use this workflow before building.
Hypothesis 3
Add gamification features such as leaderboards and rewards for completing quizzes.
Assumption to check: Lack of interactive elements may reduce engagement.
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to create and customize their own quizzes and flashcards.
Assumption to check: Limited customization options for users.
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
AP Chemistry Review & Exam Practice Created by an experienced Chemistry teacher, this app provides comprehensive review material for all 9 AP Chemistry units. Designed around the updated AP Chemistry CED, the app combines: • 1600+ multiple-choice questions • 300+ interactive study cards • FRQ practice with scoring guides • Complete revision notes • Unit videos and visual learning resources • Hints and detailed explanations for every MCQ Multiple Choice Practice Build quizzes from individual units or combine multiple units together. Features include: • Unit-by-unit practice • Exam-style review questions • Full 60-question mock exam mode • Hints for every question • Detailed answer explanations • Automatic review of missed questions Interactive Study Cards Study cards cover: • Applied knowledge • Exam tips • Key concepts • Visual explanations • FRQ-style questions Cards can be moved to the top or bottom of the deck depending on confidence and progress can be saved for future study sessions. FRQ Practice The app includes a growing collection of 4-mark Free Response Questions. Each FRQ includes: • Realistic AP-style prompts • Visual stimuli where appropriate • Scoring guidelines • Worked answers Additional FRQ content is added regularly. Progress Tracking Monitor performance in every unit. • Track percentage scores • Review incorrect questions • Archive progress and start again whenever needed Built-In Reference Materials Access important AP Chemistry reference material at any time, including: • Periodic tables • Formula sheets • Equation sheets Ideal For • AP Chemistry students • Honors Chemistry students • First-year college chemistry review • Exam preparation throughout the school year
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/native
react-native-paper
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.
