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.
The Bowl U app shows bowlers how to logically classify their bowling ball arsenal
$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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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 Bowl U: map the core Sports 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 player statistics and insights
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No social sharing features
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Basic UI design
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: In-app purchase confusion
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.
The Bowl U app shows bowlers how to logically classify their bowling ball arsenal. Build an arsenal chart and have the Bowl U app tell you which ball to use next. Learn how to create a bowling ball arsenal. Learn proper ball motion. Why BowlU? There is no other recreation or sport like bowling. Everyone loves bowling and almost everyone wants to get better, and that's why we are here. We encourage you to follow your own path, play your own game, and compete in any environment you choose. That's exactly what we did and it was a blast. It took a long time to get where we are at and we want you to have as much fun as we did. Of course, we wish it hadn't taken so long and that's where we can help you like nobody else. BowlU is knowledge and experience you can't get anywhere else in the world, it will shorten the learning curve, eliminate confusion, and change the way you view the sport forever. BowlU is over 50 years of experience and success at every level of our sport. We have traveled around the bowling world and shared with the best of the best. Through it all we never forget to keep it fun. We are a team that won't forget the past or deny progress. Our eyes are always into the future and how we can make it better for everyone. We have created a showcase of what bowling is, can be, and will be when and if we all work together as a team. We pride ourselves in our creativity, loyalty, and pride. We are as competitive as you can get but maintain our respect for everyone's opinions and choices. We are well aware of the challenges of the sport and the opinions of those involved. The BowlU difference is we will not get bogged down, we keep moving forward with goals that give everyone opportunity. We love what we have and look forward to helping everyone towards an even brighter future. So whatever pathway you choose we are here to support the direction you choose. We just want to make sure that the pathway is free and clear of any roadblocks you may encounter. BowlU for all the right reasons.
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.