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
FM Radio - AM, FM, Radio Tuner
FM Radio allows you to listen to thousands of radio stations, one of the few online radio stations that allow listeners to access entertaining songs from any location
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
5,077 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.
Build your own version
Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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 FM Radio - AM, FM, Radio Tuner: map the core Music 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 broader range of stations with user-submitted options.
Assumption to check: Limited station availability in certain regions
Validate with people who use this workflow before building.
Hypothesis 2
Add a feature for caching favorite stations for offline listening.
Assumption to check: No offline access to stations
Validate with people who use this workflow before building.
Hypothesis 3
Expand sleep timer to include more customizable durations.
Assumption to check: Inadequate sleep timer options
Validate with people who use this workflow before building.
Hypothesis 4
Redesign the UI for a more modern and engaging experience.
Assumption to check: User interface feels outdated
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
FM Radio allows you to listen to thousands of radio stations, one of the few online radio stations that allow listeners to access entertaining songs from any location. The radio usually carries traditional, popular music formats and caters to the audiences turning towards digital formats. Tune in to your favorite FM radio stations with a click of a button. Enjoy listening to free radio, Music, News, Sports, Classical, Rock, Pop, Instrumental, Hip-Hop, Gospel, Songs, Comedy Radio, and much more. Apps with features of similar top fm radio tuner offer 24 hours of music, news, sports, live radio, and trending songs. Radioly Features:- 1. Classic design to display the FM radio station listing 2. Add to Favorites 3. Featured list 4. Countries list (Select country and listen to the AM FM Radio Stations) 5. Search your favorite radio station or genre. 6. Share what you are listening to on Facebook, Twitter, G+, and Tumbler. 7. Sleep timer 8. Siri Shortcuts 9. Home Screen Widgets and much more. FM radio is broadcast all over the world, radio tuner bring top country FM radio around the world! our radio FM is the only app to play any live, internet-based radio broadcasts on your iPhone. You would need an Internet connection to play any FM radio station through our application. With our application, you can easily navigate to the favorite AM & FM Radio Stations of your choice on a quite fast and hassle freeway. We are improving our Radio app on a regular basis such that you can have a very smooth experience while you are using our radio station at home, office, or in your car. So, if you are having any kind of questions, then do get in touch with us at [email protected] and one of our representatives will reach out to you in a span of 24 hours. If anyone wants to remove the copyright radio station send mail to [email protected]. If any radio broadcaster wants to add am fm radio station to RadioLY app mail us at [email protected] Note: It does not work without the internet. It requires an active internet or wifi connection to work. Website: https://radioly.app/ RadioLy Subscription Plans: - Monthly : $1.99 - Yearly : $9.99 Payments and Renewal: * Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. * Account will be charged for renewal within 24-hours prior to the end of the current period. * You can manage or turn off auto-renew in your Account settings at any time after purchase * No cancellation of the current subscription is allowed during the active period. Terms of use: https://radioly.app/terms-and-condition/ Privacy policy: https://radioly.app/privacy-policy/ Social media - Facebook: https://www.facebook.com/RadioLyApp Instagram: https://www.instagram.com/radioly.app Twitter: https://x.com/radiolyapp YouTube: https://www.youtube.com/channel/UCLAThM6SlXcI0W8UxzBk-IQ
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
react-navigation
axios
expo-av
BUILD KIT DIFFICULTY
Intermediate
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.
