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 King
Welcome to Healthy Rewards! Whats better than the first sip or spoon? How about an ordering experience that serves up your second, third and millionth sip or spoon faster than ever! The added drizzle? You get paid! Ye...
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.9
232,613 ratings · Top 5%
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
Make this idea yours
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.
What's included17 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
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 King: 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
Allow users to customize their smoothies with more choices.
Assumption to check: Limited customization options for smoothies.
Validate with people who use this workflow before building.
Hypothesis 2
Optimize image loading to improve app speed.
Assumption to check: Slow loading times for menu items.
Validate with people who use this workflow before building.
Hypothesis 3
Provide comprehensive nutritional info for each item.
Assumption to check: Lack of detailed nutritional information.
Validate with people who use this workflow before building.
Hypothesis 4
Simplify the rewards process for easier access and usage.
Assumption to check: Complicated reward redemption process.
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
Welcome to Healthy Rewards! Whats better than the first sip or spoon? How about an ordering experience that serves up your second, third and millionth sip or spoon faster than ever! The added drizzle? You get paid! Yep, you'll earn points with each order, which add up to dollars off future blends. Heck yea. Cheers to you, friend! BENEFITS • Dynamic calorie counter: keep your health goals in check with our new calorie counter. • Reward and deal overview in the cart: choose the deal that suits your order. It's like matchmaking but for sips and spoons! • Order favoriting for quicker ordering: find your favorites faster because life's too short for repeat scrolling • Consolidated Wallet: see all your payment options at a glance - managing your bucks has never been so easy! • Blender Bucks (gift card) history: track your gift card history with ease. • Location favoriting: show some love to your go-to Smoothie King spots with a simple tap. • Integrated Apply pay: Fast, easy and secure payments? Yes, please! • Exclusive member-only deals: think ""FREE Upsize Friday"" and sneak peeks to new products. It's VIP treatment, Smoothie King style!
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
Supabase
Zustand
React Navigation
React Native Reanimated
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.
