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.
App Overview
Kuroko's Basketball SR
This all-new, hotblooded basketball competitive mobile game, "Kuroko's Basketball Street Rivals," is an instant head-to-head action game adapted from the popular Japanese basketball anime "Kuroko's Basketball." It fai...
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.2
150 ratings · Top 30%
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.
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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included16 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Screen plan
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.
Differentiate and validate
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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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Kuroko's Basketball SR: 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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Opportunities
AI-GENERATED OPPORTUNITY HYPOTHESES
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
Create clear explanations and a better user interface for in-app purchases.
Assumption to check: In-app purchases might be unclear or poorly implemented.
Validate with people who use this workflow before building.
Hypothesis 2
Provide more customization features for characters.
Assumption to check: Limited character customization options.
Validate with people who use this workflow before building.
Hypothesis 3
Implement a more intuitive navigation structure.
Assumption to check: Potentially confusing navigation between screens.
Validate with people who use this workflow before building.
Hypothesis 4
Add social features such as team sharing or multiplayer gameplay.
Assumption to check: Lack of social features or multiplayer options.
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
This all-new, hotblooded basketball competitive mobile game, "Kuroko's Basketball Street Rivals," is an instant head-to-head action game adapted from the popular Japanese basketball anime "Kuroko's Basketball." It faithfully recreates the world of the original work. You can develop and train a wide array of iconic players like Kuroko Tetsuya and Kagami Taiga, and then take direct control to experience the anime's intense and thrilling basketball matches. With a variety of rich gameplay modes, get ready to reignite your passion and relive the excitement of "Kuroko's Basketball"! [Breathtaking Skill Animations!] Perfectly recreate each character's signature skills, like Kuroko's "Misdirection" and Kagami's "Air Walk." Use your masterful controls to execute the most dazzling skill combos! [Multiple Modes & Thrilling Multiplayer Online Battles!] Beyond the core 3v3 match mode, enjoy a variety of other modes like 1v1, 2v2, and Ranked Matches. Dive into intense real-time competition against players from across the entire server! [The Kings of Every Team Assemble!] It's not just Seirin and Kaijo High-all the powerhouse schools from "Kuroko's Basketball" are gathered here! Freely develop your favorite players and bring them into the fray! [100% Faithful Story, Featuring Original Voices!] Dive into the distinctive Story Mode, which fully incorporates the original anime voice-overs and plot. Become a member of the team and personally experience every single match from the story!
Written user reviews are not shown here. Check current App Store reviews >
Build scope
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Define the first version
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Set boundaries
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Check the hard parts
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
SUGGESTED BUILD STACK
React Native
Expo
Supabase
Zustand
React Navigation
React Native Reanimated
BUILD KIT DIFFICULTY
Expert
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.
