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
SoundCheck RTA
SoundCheck RTA turns your iPhone or iPad into a fast, honest audio-analysis toolkit for live sound, install, and studio work — no account, no ads, no tracking.
$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's included16 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 SoundCheck RTA: 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 user feedback mechanisms and testing phases to refine UX.
Assumption to check: Limited user feedback and ratings can indicate poor usability or bugs.
Validate with people who use this workflow before building.
Hypothesis 2
Optimize audio processing and provide settings for users to adjust performance.
Assumption to check: Real-time audio analysis can be taxing on device resources.
Validate with people who use this workflow before building.
Hypothesis 3
Design a clear paywall and user onboarding to explain features.
Assumption to check: In-app purchases can confuse users if not clearly communicated.
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to store analyses for offline access.
Assumption to check: Potential lack of offline functionality.
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
SoundCheck RTA turns your iPhone or iPad into a fast, honest audio-analysis toolkit for live sound, install, and studio work — no account, no ads, no tracking. Point it at a room and see the truth in real time: the full frequency spectrum, sound pressure level, and the exact bands that are about to ring. Everything runs on-device, so it's instant and completely private. REAL-TIME ANALYZER (RTA) See the whole frequency spectrum as it happens. Switch between a 31-band, 1/3-octave view that lines up with a console graphic EQ and a high-resolution view for fine detail. Tap any band to read its exact level. FEEDBACK FINDER Ringing before a show? SoundCheck RTA highlights the exact bands that are feeding back so you can ring them out in seconds instead of chasing them by ear. SPL METER Check sound pressure level with A, C, and Z weighting, Leq averaging, and min/max hold. A calibration offset lets you line the reading up to a reference meter. REFERENCE TRACES Capture the current spectrum as a saved reference and overlay it later to compare a room, a rig, or a mix against your target — with a per-band difference readout. ANALYZE FILES Load an audio file and run it through the same analysis pipeline as live input, with play, pause, and scrub. BUILT RIGHT • Works with the built-in mic or external USB-C / Lightning interfaces and measurement mics. • Measurement audio mode — no OS "beautifying" of the signal. • Private by design: audio is analyzed live on your device and is never recorded, stored, or sent anywhere. No account, no ads, no tracking. Note: phone microphones are not calibrated instruments, so SPL readings are approximate — use the calibration offset for closer results.
Written user reviews are not shown here. Check current App Store reviews >
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 Native
Expo
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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.
