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.
Introducing the first and only DP/Flex Softball Simulator
$9.99 · 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.
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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 Softball DP/Flex Simulator: 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: Lack of user engagement features
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited strategy options
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Confusing navigation structure
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No analytics or feedback mechanisms
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.
Introducing the first and only DP/Flex Softball Simulator. This app is designed to help you fully understand the interworkings of the DP/Flex rule, per the official rulebook (collegiate, high school, club, & international). Enter line-ups and make substitutions which the app will confirm are allowed (or not allowed) before you take the field, so that you can be prepared & confident when it comes to game time. -Create your own line-up with custom player names -Prep for games by running your substitutions through this app (or use in the dugouts, where allowed) -Save your line-ups for future use -Access to videos, such as why it's advantageous to enter your DP into the field and create an OP This app follows the basic premises of the DP/Flex Rules: -Flex is always listed 10th on the lineup card, and can only enter as a batter if for the DP. -To use a DP/Flex, must start the game with a DP/ Flex (cannot add once the game starts). -Once any player leaves the game (out of the lineup), they have used a sub. Only starters may re-enter (one time) after being subbed out. Thus, if flex bats for DP, this counts as a sub for the player in the DP spot. -The DP spot is initially listed as only hitting, however they can enter the field and play a position, turning the player they entered into the field for, into the "OP" (Offensive Player), who now just hits. The flex cannot hit for the OP, still can only hit for the DP.
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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.