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
Music Recognition- Song Finder
Music Recognition will identify any song in seconds.It´s very simple and easy to use.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.6
8,347 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 included16 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 Music Recognition- Song Finder: 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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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
Music Recognition will identify any song in seconds.It´s very simple and easy to use. Music Recognition lets you play a music preview of the identified track and give you the option to listen the full song on Youtube streaming services. Music Recognition & Song Finder is a music song detector identifies the song you are listening to in a few seconds in real time and shows the song's title and singer by providing links to listen to the song recognized on the most popular streaming music services. [ Features of song identifier ] * Find a song by humming * Find the name of any song in seconds. * Find song by sound within seconds (Powered by ACRCloud). * Song search by humming,listen and add to Music playlists. * Music finder by sound,watch music videos from Spotify Music or YouTube. * Use Pop-up Song Recognizer to identify music in any app - Instagram, YouTube, TikTok. * Listen to a spotify preview of the song so you can be sure it matches what you found. * Get recommended songs and playlists to discover new music. * Share songs with friends through Snapchat, Facebook, WhatsApp, Instagram, Twitter and more. Every identified song is saved in the history page,you'll have a Music Map to look up exactly where you heard that song you loved so much. [ music recognition by link ] * paste the link to identify song names. [ music identifier ] * Local video recognition of song names. [ Pop-up Music Recognition ] * Pop-up Music Recognition to identify music in any app - Instagram, YouTube, TikTok. [ music chart ] * Find out what is popular in your country or city with music charts. [ top hits ] * Get recommended songs and playlists to discover new music. [ my playlist ] * Create playlists with song suggestions or collaborate with other music fans to create the perfect playlist. [ my favourite song ] * Personalized playlists and Mixes made just for you, built around your favorite types of music. [Ringtone Maker] * How to use this Ringtone Cutter: * 1. Choose a music clip from your phone/ SD card * 2. Select the length of the music you want to cut out and trim music * 3. Edit tag for the clip(Title, Format, Bitrate, Volume etc) * 4. Save as Ringtone/Alarm/Notification or Share [ song search ] * Perfect search feature will help to easily find your favorite songs. [ share songs ] * Share songs with friends through Snapchat, Facebook, WhatsApp, Instagram, Twitter and more. [ playlist push ] * Discover new music, albums, playlists. Thank you for downloading Music Recognition - Song Finder. And your suggestions or problems are always welcomed. Link to the Terms of Use (EULA) : http://markwatermark.com/license_agreement.html Link to the Privacy Policy : http://markwatermark.com/recognition_privacy.html
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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 advanced audio analysis algorithms for better identification.
Assumption to check: Limited song recognition accuracy
Validate with people who use this workflow before building.
Hypothesis 2
Optimize backend processing for faster results.
Assumption to check: Slow response time for song identification
Validate with people who use this workflow before building.
Hypothesis 3
Add functionality to share identified songs on social media.
Assumption to check: No social sharing features
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to save songs for offline identification.
Assumption to check: No offline mode for song recognition
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
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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.
