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
Police Scanner Radio & Fire
Scanner Radio is the #1 police scanner and alerts you of breaking news so you can listen to the action live with millions of others.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.6
538,148 ratings · Top 15%
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 included20 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 Police Scanner Radio & Fire: map the core News workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Scanner Radio is the #1 police scanner and alerts you of breaking news so you can listen to the action live with millions of others. Stay up to date with your local news, traffic, emergency and public safety or listen in during major national live events in real time. Features: • Breaking news alerts to get the scoop before anyone else. • View scanners located nearest you. • View the most popular scanners. • View the newest scanners being added all the time. • Star your favorite scanners for quick access. • Browse thousands of scanners from all over the world by location or genre (public safety, air traffic, railroad, marine, etc). • CarPlay support Receive an alert anytime: • A scanner in the directory has more than a certain amount of listeners • A specific scanner has more than a certain number of listeners • A Broadcastify alert is posted for one of your favorites • A Broadcastify alert is posted for any scanner • A Broadcastify alert is posted for any scanner near you • A new scanner comes online near you Turn on notifications to receive alerts anytime a scanner has more than 2000 listeners (find out about major events as they're breaking). The audio you're able to hear is provided by volunteers (and, in many cases, police and fire departments themselves) for Broadcastify.com and a few other sites using real scanner radios. For assistance, please go to http://support.gordonedwards.net Terms of Use: https://scanner-radio.firebaseapp.com
Written user reviews are not shown here. Check current App Store reviews >
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
Offer a more generous free tier with additional features.
Assumption to check: Limited number of free streams available
Validate with people who use this workflow before building.
Hypothesis 2
Implement a quality selector for users to choose stream quality.
Assumption to check: Inconsistent audio quality
Validate with people who use this workflow before building.
Hypothesis 3
Add customization features like user-defined categories or tags for feeds.
Assumption to check: Lack of user personalization options
Validate with people who use this workflow before building.
Hypothesis 4
Streamline navigation to make it more intuitive with fewer taps.
Assumption to check: Complex navigation structure
Validate with people who use this workflow before building.
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
React Navigation
Axios
Zustand
Expo AV
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.
