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
Smoothie Blaster
Smoothie Blaster is designed to blast out healthy smoothie recipes matching your personal tastes
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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.
Build your own version
Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included14 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 Smoothie Blaster: map the core Food & Drink 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
Implement a guided onboarding process to help users select their preferences.
Assumption to check: Users often find recipe apps overwhelming due to too many options.
Validate with people who use this workflow before building.
Hypothesis 2
Add a recommendation engine based on user preferences and past favorites.
Assumption to check: Lack of personalization in recipe suggestions.
Validate with people who use this workflow before building.
Hypothesis 3
Enhance search functionality with filters for ingredients and nutrition.
Assumption to check: Difficulty in finding specific recipes.
Validate with people who use this workflow before building.
Hypothesis 4
Provide clear explanations of premium features and a trial period.
Assumption to check: In-app purchases may confuse users.
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
Smoothie Blaster is designed to blast out healthy smoothie recipes matching your personal tastes. Whether you are a green smoothie addict or want to make a smoothie with what’s left in your fridge, the Smoothie Blaster has over 100+ delicious recipes to try! Smoothies are a great meal for making you feel amazing and refreshed. They’re also super quick to make and easy to take on the run. FEATURES - 100+ delicious recipes to try, with new recipes added regularly! - All recipes are in cup measurements to make it super easy. - Search by your favourite recipe name. - Search by the ingredients you have in your fridge or on hand. - Save your favorite recipes. - Submit your own recipe. - View recipes by highest rated. - View newest recipes. - View your saved recipes. Download now and start your healthier lifestyle today!
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
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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
React Navigation
Axios
Redux
Firebase
BUILD KIT DIFFICULTY
Intermediate
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.
