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
WalkPay: Walk & Earn Rewards
WalkPay: Walk & Earn Rewards
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.1
4,627 ratings · Top 30%
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/
Preview a sample Build Kit No email needed
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 WalkPay: Walk & Earn Rewards: 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
Expand reward catalog to include local businesses and personalized offers.
Assumption to check: Limited reward options compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Implement more robust algorithms for step counting.
Assumption to check: Inaccurate step tracking on some devices
Validate with people who use this workflow before building.
Hypothesis 3
Simplify navigation and onboarding process.
Assumption to check: User interface can be confusing for new users
Validate with people who use this workflow before building.
Hypothesis 4
Add social challenges and leaderboards to motivate users.
Assumption to check: Lack of social features to encourage engagement
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
WalkPay: Walk & Earn Rewards Walk every step and earn real rewards — get motivated, stay active, and unlock exciting prizes. WalkPay is a smart pedometer and motivation tool that turns your daily steps into valuable rewards. Stay active, complete tasks, and collect energy to redeem gift cards and real-life prizes — all by simply walking. Key Features: Smart Step Counter Tracks your daily steps automatically, helping you stay fit and consistent. Reward System Complete simple walking tasks and daily activities to earn energy and unlock amazing gifts. Redeem Exciting Prizes Exchange your collected energy for gift cards and real-world rewards when goals are met. Goal Tracking Set your step goals and achieve them to stay motivated every day. Energy-Efficient Design Runs smoothly in the background with minimal battery usage. Basic Location Support Helps improve step accuracy and ensures safe account usage. Location sharing is always under your control. Tips for Better Use: Enable location services to improve step tracking accuracy. Allow “Always” location access for continuous background tracking. Our battery optimization ensures minimal power consumption during tracking. Privacy Protection Your privacy is important to us. Location and activity data are only used with your permission and never shared without your consent. Privacy Policy: http://resource.usdget.com/FP_FindNow_en/privacy.html Terms of Use:http://resource.usdget.com/FP_FindNow_en/service.html Email: [email protected]
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/native
expo-location
@supabase/supabase-js
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.
