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.
hey, what song is that? soundhound makes it simple to identify music playing around you
Free · In-app purchases
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for SoundHound - Music Discovery: 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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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
Assumption to check: Limited song identification attempts in free version.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Occasional inaccuracies in song identification.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: In-app ads can disrupt user experience.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Social features are limited.
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
hey, what song is that? soundhound makes it simple to identify music playing around you. whether you’re in the car or out and about — open the app, hit the big orange soundhound button, let your phone listen for a few seconds, and we’ll tell you exactly what’s playing! it's been called pure magic — and with 300m+ downloads and billions of songs discovered — we tend to agree. soundhound comes equipped with “hey soundhound…”, an incredibly powerful way to interact with the app using your voice. “hey soundhound…” can help you navigate the app, activate the orange button, and playback songs hands-free. simply say ‘hey soundhound...’ from any screen and say a command! discovering new music is only half the fun of soundhound. we’re music lovers too, so we’ve created an incredible experience for you to relive your discoveries with our music player. connect your apple music or spotify account to listen, build playlists, explore music across genres, and find new favorites - all with real-time, karaoke-style lyrics using livelyrics®. don’t have an apple music or spotify subscription? no sweat, we have you covered with our free, built-in youtube player. this is your music journey. curious to know more? here’s everything you need to know! discover • tap the soundhound button in the app, in the notification center widget, or via 3d touch on the app icon to discover music playing around you! we’ll let you know everything about the song including title, artist, album, and lyrics! • have a song stuck in your head? press the soundhound button, sing or hum the tune, and we’ll do the rest! • keep track of all your discoveries in your own personal history • use the apple watch app to quickly identify music and sing-along with livelyrics. users with a cellular-enabled apple watch can use the app without being connected to an iphone play • listen to songs and view lyrics in our free, built-in youtube player • simply say ‘hey soundhound....’ from any screen or tap the microphone on the play page. once you see the listening panel, you can follow up with commands including: app navigation: ‘hey soundhound… show me my discoveries’ help/questions: ‘hey soundhound… show me what i can say’ music discovery: ‘hey soundhound… what’s that song?’ song playback: ‘hey soundhound... play hello by adele’ lyrics search: ‘hey soundhound... show me lyrics to castle on the hill’ top charts: ‘hey soundhound...play today’s top songs’ playlists (spotify account & registration required): ‘hey soundhound… play my discover weekly playlist on spotify’ add to spotify playlist (spotify account & registration required): ‘hey soundhound… add this song to my playlist’ connect and share • build personalized playlists through apple music or spotify (soundhound account and music subscription required) • access spotify playlists for a richer playback experience through soundhound • view and interact with real-time, moving lyrics for your songs with livelyrics • keep all of your discoveries synced across multiple devices • share your music discoveries to facebook, twitter, messaging services, and email! upgrade to soundhound∞ for an ad-free experience: https://04ii.app.link/rxarxypnta soundhound is powered by houndify, an independent voice-enabled ai platform that enables natural, conversational intelligence on any product.
Written user reviews are not shown here. Check current App Store reviews >
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.