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.
Always know the best checkout finish for each double
$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 Darts Checkout Training: 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 strategy variety
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of social features
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Monetization feels forced
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Basic UI design
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.
Always know the best checkout finish for each double. This app is an indispensable tool if you want to increase your performance and your average permanently! Strengthen yourself mentally, even if there is no dartboard around! Are you standing on a 65 again and have to calculate how best to put a 40 or 32? You are already at a disadvantage because you lose concentration while arithmetic and have to start again. The Darts Checkout Trainer helps you to gradually learn all common checkouts from 41 to 170 by heart. And if you prefer a different finish route than suggested by the app for a checkout, you can edit the stored checkout table at any time and save your preferred routes. In a real match, you can also use the app as a checkout table! The app always shows you your current favorite checkout. You can also use the app as a clear checkout table! Make sure to try out the widgets "Checkout of the day" and "Checkout table"! Do you have to write on a scoreboard at a league game again? Or are you playing on a board with a friend and there is no app available? With this app you can practice "calculating by hand"! In addition to the mental training, there will be more and more practical games on the board over time. 501, Around the clock and Bob's 27 are the hottest new games. Get accurate on every single segment of the board and push your double hit rates! And very important: The app is optimized for both iPhones and iPads. If you hang your iPad right next to the dartboard, you will see all the displays clearly from the drop point. Don't waste any time and start your training today!
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.