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
Salsa Rhythm
Salsa Rhythm is your ultimate salsa practice tool, helping you to perfect your salsa timing, musicality, and musicianship by selecting your own instruments, tempo, and loops! It is great for dancers, musicians, produc...
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.8
3,425 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.
Build your own version
Build Kit
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Add to a Remix
Combine features and design from your favorite apps.
Kit ready. Verify your email to download it.
Generating… usually about a minute.
Make it yours Optional
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.
JavaScript is required to complete mailbox verification.
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 Salsa Rhythm: 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.
Continue in Rork >
Affiliate link: CloneChart may earn a commission at no extra cost
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
Regularly add new exercises and tracks to keep engagement high.
Assumption to check: Limited exercise variety and content updates
Validate with people who use this workflow before building.
Hypothesis 2
Implement onboarding tutorials and tooltips.
Assumption to check: Difficult to navigate for new users
Validate with people who use this workflow before building.
Hypothesis 3
Offer more free content or a one-time purchase option.
Assumption to check: High subscription cost for basic features
Validate with people who use this workflow before building.
Hypothesis 4
Add social sharing options for users to share progress or achievements.
Assumption to check: Inadequate social sharing features
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
Salsa Rhythm is your ultimate salsa practice tool, helping you to perfect your salsa timing, musicality, and musicianship by selecting your own instruments, tempo, and loops! It is great for dancers, musicians, producers, and instructors! Top Features: * Practice at a tempo of YOUR choice! * Combine/mix instruments to your liking and choose their loops! * Use as a metronome and practice your groove! * As an instructor, hold your dance classes anywhere! Instruments: Clave, Piano, Congas, Timbales, Bongos, Bass, Maracas, Guiro, Cowbell and an Instructor Voice Also included: * 20 different piano loops, 20 bass loops, >29 percussion loops including Tumbao, Guaguancó, Cáscara, Rumba, Caballo, Danzón and more * Automatic key change setting for practicing in all keys! * Instructor voice counting the beats of your choosing * Control the tempo (BPM), musical key and the individual volume of each instrument App Store reviews are very helpful. If you think Salsa Rhythm is great, would you mind taking a minute to write a review, or update an old one? It's greatly appreciated. If you have any problems or questions you can email us through the support page in the app (or directly at [email protected]), thanks! See the end user license agreement at the following link: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
< Scroll to see more >
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
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.
