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
Tongue Chi TMJ Relief
Tongue Chi TMJ Relief offers a non-invasive, inexpensive TMJ treatment option for bruxism (grinding and clenching of teeth)
$3.99
PRICE
$3.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 2.5
17 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 included
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 Tongue Chi TMJ Relief: 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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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Tongue Chi TMJ Relief offers a non-invasive, inexpensive TMJ treatment option for bruxism (grinding and clenching of teeth). Created by a dentist who overcame his own clenching and grinding habits, Tongue Chi is a short, simple recording that will train you effortlessly to overcome these habits naturally, without any dental appointments. For more information, go to link: http:www.tongue-chi.com Tongue Chi TMJ Relief was developed as an easy, effective app for you to learn to relax your jaws and stop clenching and grinding your teeth, even while you are asleep. Before undergoing expensive treatments and appliance therapy, try using Tongue Chi. It is looped so that you can listen repeatedly for extended sessions until you are habit-free. TMJ is a condition with a wide array of painful symptoms, including toothaches, earaches,headaches, migraines, neck aches, and tenderness of the jaws and facial muscles. Other common complaints are worn, broken, and sensitive teeth.
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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
Incorporate push notifications for reminders and social features for sharing progress.
Assumption to check: Limited user engagement features like reminders or social sharing.
Validate with people who use this workflow before building.
Hypothesis 2
Implement user profiles to tailor exercise suggestions based on user needs.
Assumption to check: Lack of personalized recommendations for exercises.
Validate with people who use this workflow before building.
Hypothesis 3
Enhance search functionality and categorization of exercises and tips.
Assumption to check: Difficult navigation for finding specific exercises or tips.
Validate with people who use this workflow before building.
Hypothesis 4
Focus on performance optimization and thorough testing before release.
Assumption to check: Low app rating due to bugs and performance issues.
Validate with people who use this workflow before building.
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
React Navigation
Axios
TypeScript
Redux
BUILD KIT DIFFICULTY
Not assessed in a Build Kit yet.
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.
