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.
Looking up reliable country facts usually means wading through slow, ad-heavy websites.
$1.99 · In-app purchases
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for The CIA World Factbook: map the core Reference workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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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
Assumption to check: Limited country information compared to web sources.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Navigation can feel cluttered with multiple categories.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Inconsistent performance on older devices.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of user engagement features like quizzes.
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Looking up reliable country facts usually means wading through slow, ad-heavy websites. The CIA World Factbook puts comprehensive global intelligence in your pocket — instant and distraction-free. Spin a fluid 3D globe to explore 260+ nations and compare 100+ global rankings. 100% offline with zero ads, zero tracking, and no subscriptions. Buy once, own forever. Explore every corner of the world. --- 3D INTERACTIVE GLOBE • Fluid 3D globe visualization powered by vector mapping • Spin, zoom, and explore every sovereign nation and territory • Tap any country’s flag annotation to dive straight into in-depth profiles 100+ GLOBAL METRIC RANKINGS • Compare nations across key metrics: GDP, population, life expectancy, energy, and communications • Sort, filter, and analyze comparative leaderboards across the globe COMPREHENSIVE COUNTRY PROFILES • Authoritative intelligence for 260+ countries and territories • Deep-dive chapters: Geography, People & Society, Government, Economy, Energy, Communications, Transportation, and Military • Public-domain photo galleries showcasing national landscapes and landmarks HIGH-RESOLUTION REGIONAL MAPS • Vector regional maps covering Africa, Americas, Asia, Europe, Middle East, Polar Regions, and Oceans • Full-bleed zoom with zero blur or pixelation • World Time Zone reference map included INTERNATIONAL ORGANIZATIONS DIRECTORY • Comprehensive reference for global bodies (UN, EU, NATO, ASEAN, OECD, OPEC, and more) • Instantly view member states, observer countries, and regional alliances TAILORED READING EXPERIENCE • Thoughtfully crafted typography featuring Tisa Mobi Pro and Bariol fonts • Reading themes (Light, Sepia, Gray, Night) with custom font sizes and line heights • Quick-jump Table of Contents and full iOS Spotlight search integration 100% OFFLINE & PRIVATE • All core encyclopedia data and maps are bundled locally — no internet required • Buy once, own forever — zero ads, zero tracking, no in-app purchases, and no subscriptions
Written user reviews are not shown here. Check current App Store reviews >
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.