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.
Lotto Master is the smartest way to pick numbers for Powerball and Mega Millions.
$0.99 · 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 Lotto Master Pro: map the core Entertainment 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 lottery game options
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Poor user interface design
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No social sharing options
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.
Lotto Master is the smartest way to pick numbers for Powerball and Mega Millions. Stop using the same numbers everyone else does. Lotto Master generates fresh, never-before-drawn combinations and checks every set you create against the full history of past winning numbers — so you'll never play a combination that's already been picked. KEY FEATURES - Generate Master Combinations One tap creates a fresh set of numbers for Powerball or Mega Millions, drawn from real probability distributions and verified against every past draw. - Check My Numbers Have a favorite combination? Lotto Master tells you instantly if those numbers have ever been drawn before, and if so, when. - Save Your Picks Build a personal library of the combinations you actually want to play. Pull them up at the counter without scrambling. - Always Up to Date Latest drawing results are pulled automatically and cached on your phone, so you can use the app even without a signal. - Two Games, One App Full support for both Powerball and Mega Millions — switch between them with a single tap. - Designed for the Player Clean, fast, and built around what you actually do at the counter or on draw night. No ads. No accounts. No clutter. WHY LOTTO MASTER The lottery is a long shot — that's why people play. But not every combination is the same. Some have already been drawn. Some have unusual quirks. Lotto Master helps you sidestep the already-drawn combinations and play with picks that are statistically just as likely to hit, but haven't shown up yet. It's still gambling. It's still a long shot. But it's smarter. DISCLAIMER Lotto Master is for entertainment and convenience purposes only. It does not guarantee or imply any winnings. Past lottery results do not predict future draws. The app does not facilitate the purchase of lottery tickets — you'll still need to play through your state's official channels. Please play responsibly..
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.