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
![[untitled] icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/27/97/27/279727fe-97f9-ed73-bc48-292c2c01bed5/AppIcon-0-0-1x_U007ephone-0-1-85-220.png/512x512bb.jpg)
[untitled]
[untitled] is the best place to listen, share, and organize your work-in-progress music.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.9
18,949 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.
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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 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 [untitled]: map the core Music workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
Preview ready. Verify your email to reveal and copy the full prompt.
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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
< Scroll to see more >
App Store description
[untitled] is the best place to listen, share, and organize your work-in-progress music. - Upload directly from Airdrop, Files, iMessage or anywhere you’re getting sent music. - Organize your tracks into projects and folders, which are synced across iPhone and Web on all your devices. - Listen, edit, and organize no matter your internet connection with offline mode. - Share links to your music with friends. See who listens and manage access to your projects. - Edit the pitch and speed of your tracks. - Use AI to split your tracks in to stems - Record and nurture your inspiration whenever it strikes. - Drag and drop files and folders directly from your desktop onto our web app. - We partnered with a world-class cybersecurity firm to protect your music. Our encryption is on par with Dropbox and SoundCloud and we are aiming to be the most secure place for unreleased music. Terms of use: https://untitled.stream/terms
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 enhanced offline listening with better management.
Assumption to check: Limited offline playback options
Validate with people who use this workflow before building.
Hypothesis 2
Improve search algorithms for more relevant results.
Assumption to check: Inconsistent search results
Validate with people who use this workflow before building.
Hypothesis 3
Simplify subscription interface and management.
Assumption to check: Complex subscription management
Validate with people who use this workflow before building.
Hypothesis 4
Add more social sharing options to increase user engagement.
Assumption to check: Limited social sharing features
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
Axios
Zustand
React Navigation
expo-AV
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.
