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
Tinnitus Relief: Tonal Therapy
Tinnitus sucks.
$6.99 · In-app purchases
PRICE
$6.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.1
7 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 included14 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 Tinnitus Relief: Tonal Therapy: map the core Health & Fitness 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
Introduce more diverse tonal therapy sessions and user-generated content.
Assumption to check: Limited session variety and customization options
Validate with people who use this workflow before building.
Hypothesis 2
Incorporate user feedback to enhance audio quality and performance.
Assumption to check: Inconsistent audio playback quality
Validate with people who use this workflow before building.
Hypothesis 3
Add social sharing and community challenges to engage users.
Assumption to check: Lack of community or social features
Validate with people who use this workflow before building.
Hypothesis 4
Implement a guided tutorial for first-time users to improve onboarding.
Assumption to check: Confusing user interface for new users
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
Tinnitus sucks. Tonal Therapy helps reduce the symptoms of tinnitus through Acoustic Coordinated Reset Neuromodulation Therapy. HOW DOES IT WORK? Acoustic Coordinated Reset Neuromodulation (or ACRN) Therapy works by playing tones that dance around your tinnitus frequency. This pattern can help provide you with temporary relief of the ringing caused by tinnitus. 1) Find your frequency by using the slider while playing a tone. Use this to match to your tinnitus frequency. 2) Play the pattern and listen at a low volume. Listen for 5-10 minutes or up to a few hours. 3) Repeat this process daily (or whenever you have ringing symptoms) DOES IT WORK? ACRN Therapy has shown promising results when studied amongst a wide range of tinnitus patients. Some see significant relief, while others only minor. While we can't promise it will work for you, the feedback we have received has been promising. FOR BEST RESULTS * Put on headphones * Set the volume to a low, but audible level. * Listen for a few minutes (or up to a few hours) at a time. Repeat daily.
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 Navigation
Expo AV
Axios
React Query
React Native Slider
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.
