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
Beer Buddy - Friends Alerts
Your friend wants you to get a notification when they take a drink.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.9
113,768 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 included17 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 Beer Buddy - Friends Alerts: map the core Social Networking 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 enhanced privacy settings and user controls for location sharing.
Assumption to check: Privacy concerns with sharing location data
Validate with people who use this workflow before building.
Hypothesis 2
Add more interactive elements like events or group check-ins.
Assumption to check: Limited user engagement features
Validate with people who use this workflow before building.
Hypothesis 3
Allow users to customize alert preferences and frequency.
Assumption to check: Notification overload
Validate with people who use this workflow before building.
Hypothesis 4
Introduce a better friend discovery mechanism or integration with social media.
Assumption to check: Difficulty in finding friends
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
Your friend wants you to get a notification when they take a drink. Beer Buddy sends real-time alerts when your friends have a drink or head out — and lets you share your own updates with a single tap. See instantly who’s out, where they are, and what they’re drinking. Stay connected to your close friends in the simplest possible way. _______ WHAT YOU CAN DO • Get instant drink notifications See the moment your friends take a drink — and they'll see yours too. • Check the live friends map Know who’s out, where they are, and what they’re doing right now. • Share your moments Snap a quick photo, choose what you’re drinking, and tag your friends. • View your drink history A clean timeline of your drinks, places, nights out, and shared memories. • Pick from 100,000+ drinks Beer, wine, cocktails, soda, mocktails — log anything you’re having. • React with one tap Send “Cheers!”, “On my way!”, or a quick digital toast. • Private stats with your circle See your group’s monthly drinking activity. _______ PRIVATE. SIMPLE. JUST FRIENDS. Beer Buddy is invite-only. Only the friends you add can see your updates, photos, and location (shown briefly after posting). No public profiles, no strangers — just your people. _______ Join millions who stay close with real-time drink notifications. Need help? Email us anytime: [email protected] Please drink responsibly. Alcohol is not required. Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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
Zustand
Supabase
React Navigation
Expo Location
BUILD KIT DIFFICULTY
Expert
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.
