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
Alertstays
Book the best listing before someone else does
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.4
12 ratings · Top 30%
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 included16 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 Alertstays: map the core Travel 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 robust review system with incentives for users to leave feedback.
Assumption to check: Limited user reviews on listings
Validate with people who use this workflow before building.
Hypothesis 2
Provide clear progress indicators during the booking process.
Assumption to check: Incomplete booking flow can confuse users
Validate with people who use this workflow before building.
Hypothesis 3
Integrate push notifications for messages between hosts and guests.
Assumption to check: In-app messaging lacks real-time notifications
Validate with people who use this workflow before building.
Hypothesis 4
Create a centralized alerts management feature for better user control.
Assumption to check: Difficult to manage alerts for multiple listings
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
Book the best listing before someone else does. Get alerts for newly available listings matching your search on Airbnb and soon more platforms Thousands of travelers throughout the world use Alertstays to get the best vacation rental for their next trip. Now available as mobile app for a better experience and quicker action. Use cases: * digital nomads looking for monthly stay * family planning a xmas vacation, looking for a home with many rooms and great amenities by the seashore * friends going to a major concert or a sport event where options a limited How it works * search for your target location, dates, and filters (amenities, pricing etc.) * save your search by setting an alert * get notified with push notification when listings are newly available (due to cancellations, new hosts, or the listings now match your price filters) * book as usual through the platform Privacy policy: https://alertstays.com/privacy-policy Terms of service: https://alertstays.com/terms-of-service Alertstays is an independent service and is not affiliated with Airbnb or other rental platforms.
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
React Navigation
Axios
React Native Paper
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.
