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.
Take back control of your money with Spendy—the simple, private, and offline expense tracker designed for modern life.
$0.99
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Spendy: The Expense Tracker: map the core Finance workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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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
Assumption to check: Users often find expense tracking tedious and time-consuming.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of visual representation of spending trends.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Difficulty in managing multiple categories effectively.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Limited customization options for categories.
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Take back control of your money with Spendy—the simple, private, and offline expense tracker designed for modern life. Are you tired of complex finance apps that demand your bank passwords, clutter your screen with ads, and sell your data? Spendy is the antidote. We believe managing your personal finances should be fast, secure, and effortless. Whether you are tracking daily cash spending, managing a household budget, or simply trying to save for a vacation, Spendy gives you the clarity you need without the complexity you hate. WHY CHOOSE SPENDY? In a world of automated subscriptions and hidden fees, Spendy brings mindfulness back to your money. By manually logging your transactions—which takes just seconds—you become more aware of your financial habits. No delayed bank feeds, no categorization errors, just pure financial truth. KEY FEATURES: Private & Offline Your financial data belongs to you. Spendy works offline. We do not store your data on cloud servers, and we never sell your information to third parties. Your ledger stays on your device, secure and private. Lightning-Fast Expense Entry Open the app, enter the amount, pick a category, and you're done. Designed for speed, Spendy lets you log a coffee purchase before the barista even hands you the cup. Flexible Budgeting Tools Set monthly, weekly, or custom budgets for different categories. See at a glance how much you have left to spend on "Groceries," "Entertainment," or "Dining Out." Visual progress bars turn green, yellow, and red to keep you on track. Comprehensive Money Manager Income & Expense Tracking: Log your salary, side hustle cash, and daily bills in one place. Multiple Wallets: Track cash, credit cards, and savings accounts separately or view your total net worth. Bill Reminders: Never miss a due date again. Set recurring transactions for rent, subscriptions, and utilities. Visual Insights & Reports Where does your money go? Spendy transforms your transaction logs into beautiful, easy-to-read charts. Analyze your spending patterns by category or time period to identify where you can save. Customizable Categories Create categories that match your lifestyle. Whether you need specific tags for "Travel," "Hobbies," or "Kids," Spendy adapts to your needs with custom icons and colors. Export & Backup Need to share your expenses with an accountant or partner? Export your data to JSON formats effortlessly. Keep your own backups for total peace of mind. WHO IS SPENDY FOR? Privacy Advocates: Users who refuse to link bank accounts to third-party apps. Budget Beginners: Anyone overwhelmed by complex apps like YNAB or Rocket Money. Travelers: Track spending offline without needing a data connection abroad. Gig Workers & Freelancers: Keep personal and business expenses separate with ease. NO ADS, NO CLUTTER Enjoy a clean, distraction-free interface that focuses 100% on your financial health. Stop wondering where your money went and start telling it where to go. Download Spendy today and experience the peace of mind that comes with a simple, organized financial life. https://umutyenidil.com.tr/spendy/terms-of-use https://umutyenidil.com.tr/spendy/privacy-policy
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Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.