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.
Enter the Arena! Build your Battle Deck and outsmart the enemy in fast real-time battles
Free · In-app purchases
Evidence scope: #79 is the current overall US Grossing chart position. 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 Clash Royale: 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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Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Enter the Arena! Build your Battle Deck and outsmart the enemy in fast real-time battles. From the creators of CLASH OF CLANS comes a real-time multiplayer battle game starring your favourite Clash characters and more. Start battling against players from around the world! Clash Royale is free to download and play, however, some game items can also be purchased for real money (including random items). If you don't want to purchase game items for real money, please disable in-app purchases in your device's settings. BECOME A MASTER OF STRATEGY AND DECK BUILDING Choose unique Cards to your Battle Deck and head to the Arena for Battle! Place your Cards right and knock down the enemy King and Princesses from their Towers in a strategic and fast-paced match. COLLECT AND UPGRADE 100+ CARDS Hog Rider! Collect and upgrade 100+ Cards featuring the Clash of Clans troops, spells and defences you know and love and many others. Win battles and progress to new Arenas to unlock powerful new Cards to your collection! BATTLE YOUR WAY TO THE TOP Battle your way to the League and Global Tournaments to match against the best players in the world. Compete for glory and rewards! SEASONAL EVENTS Unlock new Seasonal items like Tower Skins, Emotes and powerful Magic Items with the Season Pass and participate in fun Challenges that put your skills to the test! JOIN A CLAN AND GO TO WAR Join or form a Clan with other players to share Cards and battle in Clan Wars for BIG rewards! See you in the Arena! The IGRS Rating for this game is 15+ ※ Notice of Access Permission: [Optional permission] Clash Royale may request permission via in game pop-ups to access your camera and send you notifications. Camera: For in-game scanning of QR codes Notifications: For sending notifications related to the game Consent is optional and you can use the app and play the game regardless of whether or not you consent. You may refuse to give consent within the game. However, certain app features may not work properly if you refuse optional access permissions"A network connection is also required. Support Are you having problems? Visit https://help.supercellsupport.com/clash-royale/en/ or contact us in game by going to Settings > Help and Support. Privacy Policy: http://supercell.com/en/privacy-policy/ Terms of Service: http://supercell.com/en/terms-of-service/ Parent’s Guide: http://supercell.com/en/parents/
Written user reviews are not shown here. Check current App Store reviews >
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: Pay-to-win mechanics can frustrate players
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Long wait times for chests to unlock
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Limited deck flexibility can lead to repetitive gameplay
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: In-app ads can disrupt gameplay
Validate with people who use this workflow before building.
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.