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
Tropical Smoothie Cafe
Order ahead, earn rewards, find cafes and more!
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.9
182,200 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
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A product spec, screen plans, and build steps for your coding agent.
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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 Tropical Smoothie Cafe: 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 save favorite customizations for quicker ordering.
Assumption to check: Limited customization options for menu items
Validate with people who use this workflow before building.
Hypothesis 2
Implement a map feature to track delivery in real-time.
Assumption to check: Lack of real-time order tracking
Validate with people who use this workflow before building.
Hypothesis 3
Simplify the promotions display to highlight only the most relevant offers.
Assumption to check: Cluttered interface with too many promotions
Validate with people who use this workflow before building.
Hypothesis 4
Provide a clearer overview of points and how to redeem them.
Assumption to check: Difficulty in managing rewards points
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
Order ahead, earn rewards, find cafes and more! Install the Tropical Smoothie Cafe® app today to make ordering delicious tropic faves easy breezy. Use the app to order delivery or order ahead* for pickup, earn points toward free sips & bites, customize menu items and more. Our better-for-you smoothies, bowls, wraps, flatbreads & more are made-to-order with quality ingredients. Free Smoothie** After First Purchase Don’t forget to join the Tropic Rewards® fam when you download the app and score a FREE smoothie** after your first purchase. Rewards Tropic Rewards members earn 10 points for every $1 spent when signed in and ordering in the app, scanning the app at the register or scanning the receipt after purchase.. Redeem points for free menu items. Customize Tropic Faves Customize your favorite smoothie and food items your way when you order in the app. *Terms and conditions apply. **At participating locations.
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.
