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.
Are you prepared to run the funniest theme park ever?
Free · 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 Idle Theme Park - Tycoon Game: map the core Games 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: Repetitive gameplay can lead to boredom
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: In-app purchases can be aggressive
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Limited customization options for parks
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Performance issues on older devices
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.
Are you prepared to run the funniest theme park ever? Rule your theme park and become the richest manager! Start with a small theme park, and work on it to make it grow. Open new attractions to create an amazing fun area where visitors will ride the roller coaster, the ferris wheel, the log ride and visit the horror house. Manage wisely the food area, and the ticket booth to earn money. Expand the theme park to get the most amazing rides and facilities. Improve your park with new rides. Prepare marketing campaigns to bring more visitors to your theme park, and offer them the most enjoyable experience. Extend the parking facilities to increase the number of clients. Hire security guards to maintain public order and security in your theme park. Make visitors feel welcome, comfortable, and happy. Take the visitor’s feedback into account in order to improve the theme park. Become a theme park tycoon and hire new employees, improve the rides and control every aspect of the business. Will you invest your money in improving the facilities of the park? Or will you increase the salary to keep your employees motivated? Take important decisions to create the best theme park. Build the most enjoyable rides, a big ferris wheel, an amazing fun house, a spooky horror house and a huge roller coaster. Run the most famous theme park in the world! If you like management and idle games, you’ll enjoy Idle Theme Park Tycoon. An easy-to-play game, but challenging game. Start with an small theme park and take important business decisions in order to grow your tycoon. Transform your small business into the best theme park in the world! Features: - Easy-to-play game for every player - Different challenges to complete - Amazing animations and great 3D graphics - Several rides available. - Take important business decisions. - Save your progress to the Cloud and recover it if you change your device
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.