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.
MUSIC PRACTICE JOURNAL
$1.99 · 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.
Kit ready. Verify your email to download it.
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.
JavaScript is required to complete mailbox verification.
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Music Practice Journal: 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.
JavaScript is required to complete mailbox verification. Return to this prompt preview.
Affiliate link: CloneChart may earn a commission at no extra cost
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: Users often forget to log practice sessions.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Difficulty in tracking long-term progress.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Limited goal-setting features.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No social sharing options.
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.
MUSIC PRACTICE JOURNAL Make every practice session count. Music Practice Journal helps you organize your songs, track your time, and play along with your favorite tracks — all in one focused app built for musicians. CREATE YOUR OWN BACKING TRACKS Upload any song and take control of the music. Isolate Instruments Split songs into vocals, drums, bass, and other instruments (typically guitar or piano), then adjust each part with simple volume sliders. Learn Faster Slow down fast songs without changing the pitch. Loop Sections Repeat difficult passages until you nail them. Export Tracks Save your processed practice tracks directly to your device. KEEP A PRACTICE DIARY Simple tools to keep you honest. Log Your Work Track how long you practiced and what you worked on. Record Yourself Add audio or video recordings from your phone to hear and see your progress. Stay Organized Tag practice sessions to understand where your time goes. BUILD YOUR SET LIST Keep your repertoire in one place. Import Your Library Quickly import song titles and artists from Apple Music. Link to Practice Connect practice sessions directly to songs in your set list. SEE YOUR PROGRESS Build a Streak Watch your daily practice streak grow. View Your Stats See clear charts of your weekly, monthly, and yearly activity. Manage Your Songs Keep track of all the pieces you’re actively learning.
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.