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
Ring It Out
Ring It Out is a fast, practical ear training game for live sound engineers and musicians
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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 included15 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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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 Ring It Out: 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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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 advanced recommendation algorithms.
Assumption to check: Limited music discovery features compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Add offline downloads for premium users.
Assumption to check: No offline listening capability
Validate with people who use this workflow before building.
Hypothesis 3
Enhance profile with social sharing and friend connections.
Assumption to check: Basic user profile features
Validate with people who use this workflow before building.
Hypothesis 4
Create playlists based on listening habits.
Assumption to check: Lack of personalized playlists
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
Ring It Out is a fast, practical ear training game for live sound engineers and musicians. Learn to identify feedback frequencies quickly, the same way you have to during a show. How it works You are quizzed on multiple frequency bands in random order. A run ends only after every band has been identified correctly at least once. Each band is timed. Faster correct answers score more. Wrong taps and skips have small capped penalties. Easy mode can gray out bands you already completed in the current run. Scoring highlights Points reward first try accuracy and speed. Time bonus is only awarded when you get the band correct. Extra bonus points are awarded for very high bands like 12k5 and 16k when available for the selected output mode. Music bed (optional) Play music from your library playlists with simple transport controls and a level control so you can mix music with the training tones. No ducking. Leaderboard and sharing Top 5 scores are stored locally on your device with run time tie breakers. Share your result card to brag or track progress. No account required.
Written user reviews are not shown here. Check current App Store reviews >
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
Redux
react-navigation
expo-av
axios
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.
