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
DancePicker
Dancing With The Stars and Strictly Come Dancing pros use DancePicker
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 2.0
5 ratings · Below Average
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 included17 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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Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for DancePicker: map the core Entertainment workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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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
Add more dance styles and in-depth tutorials.
Assumption to check: Limited content variety and depth
Validate with people who use this workflow before building.
Hypothesis 2
Implement user feedback to improve app features.
Assumption to check: Poor user ratings and feedback
Validate with people who use this workflow before building.
Hypothesis 3
Introduce social sharing and community features.
Assumption to check: No social features for sharing progress
Validate with people who use this workflow before building.
Hypothesis 4
Implement offline downloads for videos.
Assumption to check: Lack of offline access
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
Dancing With The Stars and Strictly Come Dancing pros use DancePicker. Developed by music guru Graham Jarvis, DancePicker is great for anyone who loves to move to music! Every track has been categorised by Graham together with a pro dancer. Dancers use DancePicker to generate ideas and plan routines; find the right dance for your music and the right music for your dance! Runners and Joggers use TempoPicker to find tracks at the perfect tempo to run to or to find faster tempo tracks as a challenge! DJs and Bands create set lists defined not just by tempo but by feel as well Couples find their wedding first dance. Every lyric has been checked; there are no break-up songs in DancePicker's wedding filter! Dressage riders find music with a tempo that matches their horse's walk, trot and canter pace Party planners can kick it off with a bang and slow it down for a bit of romance. If there's a party theme then DancePicker's filters will come to the rescue! Key Features of DancePicker: - Explore thousands of tracks, dance styles and tempos - Easily discover the styles you can dance to each track - Ballroom, Latin or Other styles of dance at your chosen tempo - 30 dance styles including cha cha, jive, waltz, hip hop, samba - Find tracks or artists in your chosen style and tempo - Use the unique TempoPicker to get tracks at the tempo you choose - Filter to find tracks that have been used in movies, musicals, TV Dance shows from around the world - Discover tracks that are just right for your event such as Christmas, a Halloween party or a first dance for your wedding - See if a track is a cover version - Create playlists easily with Favourites - Preview tracks available on iTunes with an option to buy - Child friendly - iTunes marked explicit tracks don't have a preview option DancePicker is always being added to. If you've any comments, ideas or even want your favourite track on the next update let us know at http://dancepicker.com/get-in-touch/ Follow us on Facebook, Twitter and Instagram @DancePicker
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Screenshots
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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 Navigation
Supabase
Expo AV
Axios
React Native
Zustand
BUILD KIT DIFFICULTY
Intermediate
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.
