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
Freebie Alerts: Free Stuff App
Freebie Alerts will send you an alert notification each time your neighbor give away something, click the notification and if it's something that you need, you just contact that person and pick the freebie up! Make it...
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
245,985 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 Freebie Alerts: Free Stuff App: 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
Implement smarter alert settings allowing users to customize frequency.
Assumption to check: Users often find alerts to be too frequent, leading to annoyance.
Validate with people who use this workflow before building.
Hypothesis 2
Provide an intuitive interface for users to organize and prioritize alerts.
Assumption to check: Difficulties in managing multiple alerts.
Validate with people who use this workflow before building.
Hypothesis 3
Expand categories and improve the search functionality to enhance discoverability.
Assumption to check: Limited categories may lead to users missing out on offers.
Validate with people who use this workflow before building.
Hypothesis 4
Simplify the purchase flow and provide clear explanations of benefits.
Assumption to check: In-app purchase process can be confusing.
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
Freebie Alerts will send you an alert notification each time your neighbor give away something, click the notification and if it's something that you need, you just contact that person and pick the freebie up! Make it yours first!. • Tired of seeing "23 interested" people on a free thing that you would love to have? • Tired of enter every single minute to check if theres is something new in the Free stuff section? • Tired of "First come, First serve" and when you appeared to that location the free stuff you wanted is gone, because someone took it first? Lucky b....rd! • Tired of the red "Sold" on something that you were asking but someone claim it first? Yeah, that is sad. Try our app for FREE, you will be receiving notifications in your phone in real time at the instance that your neighbor just post some free stuff. NO LOGIN REQUIRED: 1. Install the app. 2. You are ready to receive FREE ITEMS! That's all, Simple. Smart. Easy. YOU WILL GET FREE STUFF FROM: • Nextdoor • Letgo • OfferUp • TrashNothing • Freebie Alerts • And More! ---- Remove Ads with In-App Purchases: Freebie Alerts is a free download. If you purchase the service, you will be charged a monthly or yearly price according to your country and which item you purchase. The price will always be shown in the app before you complete a purchase. Payment will be charged to your iTunes Account at confirmation of purchase. Your Freebie Alerts subscription automatically renews at the end of every billing period (as determined by your purchase of monthly or yearly service) and your iTunes account will automatically be charged within 24 hours PRIOR to the end of the current period. You can turn off auto-renew at any time from your iTunes Account Settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Terms of Service: https://app.termly.io/document/terms-and-conditions/7ae32ee0-3187-4867-9a2d-3f07d9e592c6 Privacy Policy: https://app.termly.io/document/privacy-policy/3cb47697-ad43-4c68-bad4-e897736698b6 ---- Freebie Alerts does not have any kind of business nor commercial relationship with Nextdoor, Inc., LetGo.com (Ambatana Holdings B.V.), OfferUp, Inc and TrashNothing.com, This is a 3rd party app.
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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
Supabase
React Navigation
Zustand
Typescript
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.
