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.
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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 Angry Birds 2: 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.
Play the world's best bird flinging, pig popping game! Use the slingshot to fling birds at the piggies' towers and bring them crashing down – all to save the precious eggs. New to the world of Angry Birds? Angry Birds 2 is the best way to get to know all of the iconic characters and experience the fun gameplay that has captured the hearts (and spare time) of millions of players. Decorated Angry Birds veteran? Everything you love about classic Angry Birds games is here with some awesome new additions. Choose which bird to fling when, play with friends, take on multi stage levels, and compete and collaborate with players around the globe. Features: ● CHOOSE YOUR BIRD. Choose which bird to put in the slingshot and defeat the pigs with strategy! ● MULTI-STAGE LEVELS. Play fun, challenging levels with multiple stages – just watch out for those Boss Pigs! ● DAILY CHALLENGES. Have a minute? Complete a daily challenge and earn some quick rewards. ● LEVEL UP your birds with feathers and up their scoring power. Build the ultimate flock! ● JOIN A CLAN to take down the pigs with friends and players around the world. ● IMPRESS THE MIGHTY EAGLE in Mighty Eagle's Bootcamp and earn coins to use in his exclusive shop. ● COMPETE in the ARENA. Compete with other players for some friendly bird flinging fun and prove who is the best. ● COLLECT SILLY HATS. Collect hats with different fun themes and level up your birds' fashion game. ● BAD PIGGIES. The green baddies are back, stronger, badder, and even greener. ● LOTS OF LEVELS. Play hundreds of levels with more added in regular updates and limited time events. ● LEADERBOARDS. Prove who is the best in the world on the global leaderboards. ● FREE to download! --- When playing this game, Rovio will offset the carbon footprint caused by the device’s energy consumption. Angry Birds 2 is completely free to play. Although Angry Birds 2 can be downloaded for free, there are optional in-app purchases available. While our game is free to download and play, some game items can also be purchased for real money and the game may include loot boxes or other game mechanics with random rewards. Purchasing these items is optional but you can also disable in-app purchases in your device’s settings. This game may include: - Direct links to social networking websites that are intended for an audience over the age of 13. - Direct links to the internet that can take players away from the game with the potential to browse to any web page - Advertising of Rovio products and also products from third parties This game may require internet connectivity and subsequent data transfer charges may apply. When the game is played for the first time, there is a one-off download of additional content. Terms of Use: https://www.rovio.com/terms-of-service Privacy Policy: https://www.rovio.com/privacy We may update the game periodically, for example to add new features or content or to fix bugs or other technical issues. Please note that the game may not function properly if you do not have the newest version installed. If you have not installed the latest update, Rovio will not be responsible for the game failing to function as expected.
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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: Frustrating ad experiences interrupt gameplay
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited variety in game levels over time
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Difficulty in earning in-game currency without purchases
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: High dependency on internet connection for play
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.