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
SoundCloud: The Music You Love
What’s next in music is first on SoundCloud
Free · In-app purchases
OVERALL US RANK
#74
Grossing · all categories
REVENUE (Est)
$387K/mo
$215K - $558K
RATING
★ 4.8
2,008,701 ratings · Top 5%
Evidence scope: #74 is the current overall US Grossing chart position. 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.
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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 included19 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 SoundCloud: The Music You Love: 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 smarter offline caching for tracks.
Assumption to check: Limited offline access to music
Validate with people who use this workflow before building.
Hypothesis 2
Enhance recommendation algorithms and personalized playlists.
Assumption to check: Difficulty in discovering new music
Validate with people who use this workflow before building.
Hypothesis 3
Offer an ad-free experience with a premium subscription.
Assumption to check: Ads can be intrusive for free users
Validate with people who use this workflow before building.
Hypothesis 4
Simplify navigation and improve UI layout.
Assumption to check: User interface can feel cluttered
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
What’s next in music is first on SoundCloud. Be the first to discover, play and share your favorite tracks from emerging artists Access the world’s largest music discovery platform - That’s 300M+ tracks from 30M+ artists in 193 countries Discover new music, picked just for you - Play curated mixes and playlists based on the music you love Listen to exclusive music on SoundCloud - Hear tracks you can’t find anywhere else Find and connect with your music community - Share tracks, reach a global audience, and connect with your favorite artists and fans directly on SoundCloud Upload your own tracks - Tap into a global fanbase of millions by sharing your music Help your favorite independent artists get paid - Your fan-powered streams put money in the pockets of the artists you want to support Listen to SoundCloud for free, or subscribe to SoundCloud Go or SoundCloud Go+ for premium features. SOUNDCLOUD FREE: - Play your favorite tracks from independent and established artists, with ads SOUNDCLOUD Go: - Listen without ads - Save tracks to listen offline — anywhere, anytime SOUNDCLOUD Go+: - Unlock premium Go+ tracks - Upgrade your DJ sets with exclusive app integrations - Listen without ads - Save tracks to listen offline — anywhere, anytime - Support your favorite independent artists through Fan-Powered Royalties Need help? Get in touch: https://soundcloudcommunity.com https://help.soundcloud.com https://twitter.com/SCsupport SoundCloud is available in English, Brazilian Portuguese, Dutch, French, German, Italian, Spanish and Arabic. Privacy Policy: https://soundcloud.com/pages/privacy Terms of Use: https://soundcloud.com/terms-of-use
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
Zustand
axios
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.
