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
Freecash - Get Paid Real Money
Welcome to Freecash - Earn Rewards, the fun way to make a little money online in your spare time! Play games you actually enjoy, answer surveys, shop online and earn real money while you're at it — all from your phone.
Free · In-app purchases
OVERALL US RANK
#61
Free · all categories
REVENUE (Est)
$219K/mo
$123K - $314K
RATING
★ 4.7
168,097 ratings · Top 15%
Evidence scope: #61 is the current overall US Free chart position. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.
Build your own version
Build Kit
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Add to a Remix
Combine features and design from your favorite apps.
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Make it yours Optional
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included18 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 Freecash - Get Paid Real Money: map the core Entertainment 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
Welcome to Freecash - Earn Rewards, the fun way to make a little money online in your spare time! Play games you actually enjoy, answer surveys, shop online and earn real money while you're at it — all from your phone. Every task you complete adds real money to your balance, and you can cash out whenever you want. How Freecash - Earn Rewards works: - Sign up free — it takes seconds to create your account. - Play & earn — discover fun games and grow your balance as you play. - Cash out — turn your balance into PayPal money, Amazon gift cards, and more. Whether you've got five minutes to spare or a lazy afternoon, Freecash - Earn Rewards fits right into your day. Cash out your balance for rewards like: - PayPal cash - Amazon gift cards ...and plenty more! There's always a new game to play and more money to earn, so the fun never has to stop. Want to earn even faster? Invite your friends with our referral program and earn from it! So why wait? Download Freecash - Earn Rewards today and start playing. With a simple app and flexible payouts, earning while having fun has never been this easy. Freecash - Earn Rewards — play fun games, earn real money, all from the comfort of home.
Written user reviews are not shown here. Check current App Store reviews >
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
Offer a wider variety of tasks and higher rewards.
Assumption to check: Limited earning opportunities compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Implement instant withdrawals or faster processing times.
Assumption to check: Withdrawal process can be slow
Validate with people who use this workflow before building.
Hypothesis 3
Simplify navigation and enhance visual hierarchy.
Assumption to check: User interface can be cluttered
Validate with people who use this workflow before building.
Hypothesis 4
Curate offers more strictly to ensure higher quality and reliability.
Assumption to check: Inconsistent offer quality
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
Zustand
Supabase
React Navigation
shadcn/ui
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.
