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
MyTunes : AI Music Generator
Create studio-quality AI music in seconds
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.3
40,536 ratings · Top 30%
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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Combine features and design from your favorite apps.
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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 MyTunes : AI Music Generator: 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
Create studio-quality AI music in seconds. MyTunes helps you make music from any idea and turn inspiration into complete tracks instantly. From vision to finished song in one tap, MyTunes AI music creator gives you an easy way to bring your musical ideas to life. Advanced AI Music Tools Make music your way from a concept, lyric, or simple prompt. The AI music generator helps you make music in seconds. Describe your vision and let the AI song generator build a track ready to share. AI Rap Song Generator – Make music with original rap songs, lyrics, and beats. AI Pop Song Generator – Make music in your favorite pop style with AI. AI Rock Song Generator – Make music with powerful rock tracks and original lyrics. MyTunes AI Song Creator gives you more ways to make music across rap, pop, rock, electronic, and more. From Lyrics to Song in Seconds Turn your words into music with the AI music generator. Whether you want pop, rap, rock, or another genre, MyTunes helps you make music around your ideas. Start with a verse, chorus, or theme and let the AI song generator continue the creative process. Make Music with AI Create complete tracks with the AI music generator and shape the result with the AI song maker. MyTunes Song Creator helps you make music from a new concept and make a song whenever inspiration hits. Effortless Music Creation All-in-one tools for writing, generating, and producing songs Make music in any genre with AI Make music from text prompts or lyrics Create original tracks with the AI song generator Explore new ideas through the AI music creator Shape complete tracks with the AI song maker Build songs from scratch with the song creator Make a song with flexible AI tools Make music your way with the AI song maker MyTunes makes song creation fast. The AI music generator works alongside the AI song generator to build and refine tracks. No studio setup or technical skills Creators use MyTunes to make music with AI every day. Subscriptions are offered as auto-renewable plans on a weekly, monthly, or yearly basis (pricing may vary by country). Payment will be charged to your Apple ID account at confirmation of purchase. Your subscription will automatically renew unless it is canceled at least 24 hours before the end of the current billing period, and your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage or cancel your subscription at any time through your Apple Account Settings after purchase. If a free trial is offered, any unused portion of the trial period will be forfeited upon purchasing a subscription. Terms of Use: https://aimusicapp.org/terms Privacy Policy: https://aimusicapp.org/privacy Got feedback or questions? Contact us at [email protected]
Written user reviews are not shown here. Check current App Store reviews >
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 user feedback to refine AI generation.
Assumption to check: Music generation can be inconsistent, leading to user frustration.
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to adjust generated tracks further.
Assumption to check: Limited customization options after track generation.
Validate with people who use this workflow before building.
Hypothesis 3
Introduce folders or tags for better organization.
Assumption to check: Difficulty in finding saved tracks due to lack of organization.
Validate with people who use this workflow before building.
Hypothesis 4
Provide more free features or a clear value proposition for subscriptions.
Assumption to check: Freemium model may frustrate users with paywalls.
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
React Native
Expo
Supabase
@react-navigation/native
expo-av
react-native-slider
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.
