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
Radio Javan: Persian Music
Radio Javan is the #1 streaming platform for Persian music and entertainment.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
788,040 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.
Build your own version
Build Kit
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Add to a Remix
Combine features and design from your favorite apps.
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Make it yours Optional
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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/
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 Radio Javan: Persian Music: 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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Continue in Rork >
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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
Introduce improved offline listening features with curated playlists.
Assumption to check: Limited offline playback options
Validate with people who use this workflow before building.
Hypothesis 2
Offer an ad-free experience for premium users.
Assumption to check: Ad interruptions in free version
Validate with people who use this workflow before building.
Hypothesis 3
Optimize search algorithms for faster results.
Assumption to check: Search functionality can be slow
Validate with people who use this workflow before building.
Hypothesis 4
Add enhanced social sharing options for songs and playlists.
Assumption to check: Limited social sharing features
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
Radio Javan is the #1 streaming platform for Persian music and entertainment. Discover the newest releases, exclusive content, curated playlists, DJ mixes, and music videos from the biggest Persian artists, all in one elegant and modern app. Whether you are into Persian pop, Iranian rap and hip hop, electronic, dance, traditional, or the latest underground talent, Radio Javan delivers a premium listening and viewing experience built for fans around the world. Everything You Love, All in One Place • New Persian Music Released First . Stream the latest singles, albums, and EPs from top Iranian and Persian artists, often exclusively on Radio Javan. Stay ahead with trending tracks, new releases, and weekly hits. • Curated Playlists for Every Mood. Explore expertly crafted playlists and mixes designed for workouts, studying, driving, relaxing, parties, and more. Discover collections across genres like Persian pop, rap, EDM, traditional, classics, nostalgia, chill, and dance. • Music Videos and Originals. Watch music videos, behind the scenes content, DJ sets, interviews, and exclusive shows created for the global Persian music community. • Your Personal Music Library. Save your favorite songs, build your own playlists, follow artists you love, and get smart recommendations based on your listening habits. • Beautiful, Modern Streaming Experience. Enjoy premium audio quality with a clean, intuitive interface. Radio Javan supports AirPlay, CarPlay, and multi device playback anywhere you go. RJ Premium. Your Music, Elevated Upgrade to Radio Javan Premium for the most powerful Persian music experience: • Ad free listening across music and videos • Offline downloads for songs, albums, playlists, and videos • Unlimited skips and uninterrupted playback • Higher audio quality for a richer sound Perfect for everyday listeners, frequent travelers, and anyone who wants the highest quality Persian music experience. A Global Persian Community Join millions of listeners worldwide, from the United States and Canada to Europe, the Middle East, and beyond, who rely on Radio Javan as their home for Persian culture, Iranian music discovery, Farsi artists, and exclusive entertainment. Radio Javan connects the global Persian community through music and video. Start Listening Today Download Radio Javan and explore the world’s largest collection of Persian songs, Iranian music videos, curated playlists, DJ mixes, and exclusive content, anytime and anywhere. Follow us on Instagram: https://www.instagram.com/radiojavan Youtube: https://www.youtube.com/radiojavan TikTok: https://www.tiktok.com/@radiojavan Terms of Use: 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
Axios
Zustand
React Navigation
expo-av
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.
