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
Benjamin - Earn Money Moments
Benjamin turns your phone time into real money
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.4
82,147 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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Combine features and design from your favorite apps.
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What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included17 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 Benjamin - Earn Money Moments: map the core Shopping 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
One-tap Apple Pay checkout
Assumption to check: Slow checkout process
Validate with people who use this workflow before building.
Hypothesis 2
AI-powered search with filters and suggestions
Assumption to check: Poor search results
Validate with people who use this workflow before building.
Hypothesis 3
Real-time tracking with push notifications
Assumption to check: No order tracking
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
Benjamin turns your phone time into real money. Play games, take paid surveys, scan receipts, and watch ads to earn cash rewards on all of your purchases that you can actually withdraw to your bank account. Whether you have five minutes or an hour, Benjamin finds ways to put money in your pocket every single day. KEY FEATURES: - Play Games for Cash: Discover mobile games that pay you real rewards. The more you play, the more you earn. No skills required. - Paid Surveys: Share your opinion and get paid. Benjamin connects you with top survey providers so you earn from every response. - Receipt Scanning: Scan any store receipt and earn cashback automatically. Works at grocery stores, gas stations, restaurants, and thousands of retailers nationwide. - Watch & Earn: Watch short video ads and collect cash rewards in seconds. A great way to earn during downtime. - Easy Cash Out: Redeem your earnings directly to your bank account via PayPal or Venmo. - Daily Bonuses: Log in every day to claim streak bonuses and unlock higher-paying offers. - Personalized Offers: Benjamin learns what you enjoy and surfaces the highest-paying opportunities matched to you. - Real-Time Balance: Track every cent you earn in your personal rewards wallet. WHY BENJAMIN: Most money-making apps lock you into one way to earn. Benjamin is different - it aggregates the best earning opportunities across games, surveys, receipts, and ads into a single app. Our users average $30-$50 per month with just 15-20 minutes of daily activity. With over $35M user earnings, Benjamin is one of the most trusted cash rewards apps available. PERFECT FOR: - Anyone looking for a side income from their phone - Students wanting extra spending money - Stay-at-home parents earning during downtime - Gig workers supplementing their income - Deal hunters who want cashback on everyday spending TRUSTED BY REAL USERS: Join 5M+ people earned +$35M with Benjamin. Our community earns real money daily - not points that expire or rewards that are hard to redeem. COMPLETELY FREE: Benjamin is 100% free to download and use. We earn through affiliate partnerships with the brands and survey providers in the app, so we can pass real cash rewards directly to you. Download Benjamin today and start turning your everyday phone time into money.
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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
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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.
