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.
Welcome to Power Music NOW where group fitness goes mobile.
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 PowerMusicNow: 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 offline functionality.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Repetitive song recommendations.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Difficult navigation for new users.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Ads disrupt user experience.
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.
Welcome to Power Music NOW where group fitness goes mobile. Power Music NOW is the #1 tool for group fitness professionals. It includes a music player with the ability to adjust the BPM of any song in your library on the go, as well as built-in tabata and custom interval timers. You can also access your purchases directly inside the app. As a Power Music NOW member, you will have access to unlimited Power Music albums, unlimited custom mixes, unlimited playlists, unlimited Royalty Free music for live stream classes, exclusive music releases available only in the app and unlimited choreography videos with corresponding music and educational PDF’s. Custom mixes give you the ability to create professional beat-mixed compilations using the individual songs found in our music library. You can add gaps between tracks if you’d like or have each song transition seamlessly into the next. Playlists give you the ability to choose single songs from our library and put them into a playlist with songs from your OWN library. You can also create playlists from Power Music albums or the music from Power Music Video products. FEATURES OF THE PLAYER: -Change your BPM without altering pitch (+/- 50%) -Gapless playback -Lock tempo either by BPM or % of original BPM -Audio scrub to fast-forward or rewind -Supports multi-tasking so it runs in the background while your phone is locked or you are working in other apps -Put a song or playlist on repeat -Put a playlist on shuffle SUBSCRIPTION FEATURES: -Free 30 day trial -Unlimited Power Music albums -Unlimited custom mixes (be your own DJ!) -Unlimited playlists -Monthly exclusive albums available only in the app -Unlimited Royalty Free music for use in live stream classes on social media and zoom -Unlimited Power Music Video choreography (complete with music and educational PDF’s) -All of our music inside the app is PPL and PPCA-free for subscribers SPECIAL APP FEATURES: -Make a copy of any custom mix or playlist, saving you tons of time if you want to make a small adjustment to a mix you love -See how many items you have in each MY MUSIC section including albums, created custom mixes and created playlists -Add individual tracks from any Power Music album to a playlist you want to create -”Favorite” items in the app for quick access later PURCHASES: If you’ve purchased music already you can access those purchases directly inside the app for free, no subscription required. Power Music NOW. Expand your instructor toolkit, save time prepping for class, teach to the beat, and create epic experiences for your class participants with the world’s #1 source for music and video choreography PLEASE NOTE: Requires iOS 10, 11, or 12 (or greater). Recommended iPhone 6 or newer. Older devices could suffer crashes due to inadequate RAM, system architecture, and chip set. SUBSCRIPTION TERMS: You can subscribe to Power Music NOW directly in the app using in-app subscriptions. Included are two options: monthly ($14.99/month) and yearly ($149.99/year), both with one month free trial periods. Payment will be charged your iTunes Account at confirmation of purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24 hours prior to the end of the current period. After purchase, subscriptions can be managed in the app and auto-renewal can be turned off as well. Any unused portion of the free trial period will be forfeited when the subscription is purchased. For further details, please see terms of use at http://www.powermusic.com/privacy-policy-cookie
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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.