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
Flipp: Shop Grocery Deals
Browse thousands of weekly ads and circulars digitally with the Flipp app, and find deals from over 2000 stores including Walmart, Dollar General, Walgreens and more
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
516,180 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.
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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included18 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 Flipp: Shop Grocery Deals: map the core Shopping 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
Expand partnerships with more stores to increase deal variety.
Assumption to check: Limited store participation may lead to fewer deals.
Validate with people who use this workflow before building.
Hypothesis 2
Implement better filtering and sorting options for improved navigation.
Assumption to check: User experience can be cluttered with too many deals.
Validate with people who use this workflow before building.
Hypothesis 3
Enhance location detection and deal aggregation for wider coverage.
Assumption to check: Inconsistent deal availability across regions.
Validate with people who use this workflow before building.
Hypothesis 4
Introduce AI-driven suggestions based on user preferences.
Assumption to check: Lack of personalized recommendations.
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
Browse thousands of weekly ads and circulars digitally with the Flipp app, and find deals from over 2000 stores including Walmart, Dollar General, Walgreens and more. Flipp makes it easy to save money on groceries, pharmacy, and other household essentials. Download the Flipp app for free and see what’s on sale this week at stores near you. Here’s what our users love about Flipp: -LOCAL DEALS, ALWAYS UP TO DATE No need to wait for paper ads to arrive in the mail. With Flipp, your weekly ads arrive on time, on the app. Flipp uses your location to find deals from stores near you — so you’re always getting relevant and dependable information. -WIDE VARIETY OF CONTENT In addition to weekly grocery deals, Flipp finds you deals on pharmacy, home & garden, electronics, pet supplies, and more. -QUICKLY SEARCH FOR WHAT YOU NEED Flipp’s powerful search feature quickly scans all available weekly ads to tell you where you can get the items you need on sale. You can also search for stores to find a retailer’s weekly ad right when you need it. -SAVE DEALS BY CLIPPING See a deal you like? Simply clip the deal to your shopping list, and come back to it later when you need it. -STAY ORGANIZED WITH YOUR SHOPPING LIST Keep track of items you need with a grocery list! Find flyer offers for items you need, right from your list. Organize your list by retailer and know what to get at each store. Add quantities to items and bring home the right amount. -ADD FAVORITES Add stores to your favorites to access your frequent weekly ads from one convenient tab. -ALL YOUR LOYALTY CARDS IN ONE PLACE Never miss out on your loyalty points and rewards. Add your store loyalty cards to your Flipp app to quickly access your cards during checkout. -LOAD DIGITAL COUPONS Conveniently browse coupons by store, and load coupons to your loyalty cards to save big. Flipp will tell you about available coupon matchups that can be combined with in-store offers to maximize your savings. Download the Flipp app now to start saving on your weekly shopping! Have any questions or suggestions? Contact us at https://help.flipp.com/
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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
Zustand
axios
Firebase
react-navigation
BUILD KIT DIFFICULTY
Advanced
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.
