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
US Citizenship Test - PRO
With this US Citizenship Test (PRO version) app, you can use it to study and prepare for the US citizenship final interview
$4.99 · In-app purchases
PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.7
129 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 US Citizenship Test - PRO: 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
Expand the question database and allow user-generated content.
Assumption to check: Users find the question pool limited and repetitive.
Validate with people who use this workflow before building.
Hypothesis 2
Introduce streaks, levels, and rewards to enhance engagement.
Assumption to check: Lack of gamification features.
Validate with people who use this workflow before building.
Hypothesis 3
Provide clearer descriptions of features behind paywalls.
Assumption to check: In-app purchases are not clearly explained.
Validate with people who use this workflow before building.
Hypothesis 4
Implement a more visual progress tracker with graphs and stats.
Assumption to check: Some users report difficulty in tracking their progress.
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
With this US Citizenship Test (PRO version) app, you can use it to study and prepare for the US citizenship final interview. In order to become a US citizen you will need to answer at least 12 out of 20 questions (2025 version 128-question test) or 6 out of 10 questions (2008 version 100-question test) correctly. This pro version doesn't contain any ads. Features: -FLASHCARDS mode: study the citizenship test questions by hiding the answers until you reveal them. -star your flashcards for later review -play all questions and answers audio automatically in LISTEN mode without touching your phone. -pronounce all questions and answers -INTERVIEW mode: simulates the actual exam style which you need to get 12 out of 20 questions (2025 version 128-question test) or 6 out of 10 questions (2008 version 100-question test) correctly to pass the test. -CRAMMING mode: allows you to memorize question and answer combos quickly and effectively.
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
React Native Paper
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.
