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.
Enjoy fast-paced, realistic baseball game, featuring compact gameplay and informative stats.
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 BASEBALL 9: 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: User interface can be cluttered with too many elements.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: In-game ads can be intrusive.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Difficulty in managing player stats and upgrades effectively.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Limited multiplayer features.
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.
Enjoy fast-paced, realistic baseball game, featuring compact gameplay and informative stats. Play BASEBALL NINE to become the Legend League Champion! * Game Features - Lean and fast gameplay! - Casual characters and serious game mechanics! - Pitching and fielding as fun as batting! - You can play base running manually! - Comprehensive player stats! - Improved Autoplay with selective automation of player, inning, watching, and quick result. - Rename, gear up, and customize your players! - Offline mode available! * Fast, compact gameplay! - Enjoy a speedy, streamlined playing experience. - Hit massive dingers and get thrilling strikeouts. - Specialized auto functions by game, by inning, and by player are a given! * Enjoy realistic baseball! - Experience gameplay with realistic baseball rules. - Simulated results based on actual game stats. * Recruit and develop your roster! - Recruit players and develop them by raising stats of your choice - Equip and upgrade skills to develop them into specialists. - Raise the player tiers to turn them into hall of famers. * Customize your players! - Rename them and set them as left-handed or right-handed batters or pitchers. - Change their faces, pick body types, and choose different batting and pitching motions. - Try equipping a range of bats, gloves, cleats, guards, and glasses to customize your players in unique ways. * Manage your team and get promoted to higher leagues! - Rename your team and change its emblem and uniform. - Expand into new stadiums and manage the team’s cumulative stats. - Advance to the postseason and win for promotion to a higher league. * Supports tablets. Indonesia Rating: This game has been rated IGRS 3+ by the Indonesia Games Rating System (IGRS).
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.