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
Motion Ease
Explore a simple auditory approach to travel comfort with Motion Ease.
$1.99 · In-app purchases
PRICE
$1.99
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 Motion Ease: map the core Medical 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
Integrate gamification elements like achievements and rewards.
Assumption to check: Lack of user engagement tools in medical apps
Validate with people who use this workflow before building.
Hypothesis 2
Provide detailed analytics and visual progress charts.
Assumption to check: Difficulty in tracking progress over time
Validate with people who use this workflow before building.
Hypothesis 3
Expand exercise library with user-generated content and suggestions.
Assumption to check: Limited exercise variety
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to customize their exercise plans based on preferences and goals.
Assumption to check: Inadequate user personalization
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
Explore a simple auditory approach to travel comfort with Motion Ease. Motion sickness often stems from sensory conflict. Motion Ease uses a 1-minute, 100Hz audio tone – based on preliminary research – that may potentially act as an auditory anchor to help ease that discomfort. Plug in your headphones, set a comfortable volume, and tap play. Key Features: One-Tap 1-Minute Session: Simple playback of a pure 100Hz tone. Automatic Stop: The sound plays for exactly 60 seconds. Requires Headphones: Necessary for focused listening. Helpful Onboarding: Understand the concept quickly. Dark Mode & Language Options: Customize your experience. Clean & Simple Interface: Easy to use when you need it most. How to Use: Connect headphones. Adjust volume to a comfortable level first! Tap "Play Tone". Relax for 1 minute. --- IMPORTANT DISCLAIMER --- Motion Ease is NOT a medical device and is not intended to diagnose, treat, cure, or prevent any medical condition. Its potential effectiveness is based on preliminary findings and is not guaranteed. Results may vary. Always consult a doctor for medical advice regarding motion sickness. This app is not a substitute for professional medical care. Download Motion Ease and see if this simple audio tool can help make your travels more comfortable.
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
Supabase
react-navigation
axios
react-native-video
BUILD KIT DIFFICULTY
Starter
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.
