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.
Rythm
$1.99 · In-app purchases
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 Rythm.: 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 finance apps too complex and overwhelming.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Many finance apps lack customization for budgets.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Automatic categorization of transactions is often inaccurate.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Users want better visualizations of their spending habits.
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.
Rythm. - Where Your Money Finds Its Flow Transform the way you think about money with Rythm, the revolutionary financial app that visualizes your money flow in real-time. Watch your balance evolve second by second, creating a unique and personal financial rhythm that brings peace of mind to your financial journey. THE RHYTHM OF YOUR MONEY Unlike traditional finance apps that show static balances, Rythm brings your money to life. When you schedule future transactions, watch how your balance changes in real-time, second by second. See the path to your financial goals unfold before your eyes, creating a sense of confidence and control over your financial future. SCHEDULED TRANSACTIONS WITH REAL-TIME VISUALIZATION • Schedule income and expenses for any future date • Watch your balance update in real-time as time progresses • Set up recurring transactions (daily, weekly, monthly, yearly) • Early payment options for scheduled transactions • Visual countdown to your next financial milestone SMART ANALYTICS & INSIGHTS • Real-time balance updates every second • See your money rhythm by hour, minute, or second • Track consolidated income and expenses • Projected balance calculations • Beautiful neumorphic design that adapts to light and dark modes KEY FEATURES Real-Time Balance Visualization - Watch your balance change second by second - See how scheduled transactions affect your future - Experience your money flow like never before Scheduled Transactions - Plan future income and expenses - Set up recurring payments automatically - Early payment options with smart balance adjustments - Visual countdown to transaction dates Smart Recurring System - Daily, weekly, monthly, or yearly recurrences - Flexible interval settings - Easy management of recurring transactions - Stop or modify recurring patterns anytime Beautiful Design - Neumorphic UI with subtle shadows and depth - Light and dark mode support - Smooth animations and transitions - Intuitive and elegant user experience Comprehensive Tracking - Instant and scheduled transactions - Custom icons and emojis for personalization - Detailed transaction history - Real-time financial rhythm analytics DESIGN PHILOSOPHY Rythm combines minimalist design with powerful functionality. Our neumorphic interface creates a sense of depth and elegance, while the real-time visualization brings your financial data to life. Every element is carefully crafted to provide both beauty and utility. WHY RHYTHM? Traditional finance apps show you where your money has been. Rythm shows you where your money is going and how it flows. By visualizing your financial future in real-time, you gain unprecedented insight into your spending patterns and financial health. THE FUTURE OF PERSONAL FINANCE Rythm represents the next evolution in personal finance management. Instead of static numbers, experience your money as a living, breathing entity that flows through time. Understand your financial rhythm, make better decisions, and find peace of mind in your financial journey. PERFECT FOR • Anyone who wants to visualize their financial future • People who schedule regular payments and income • Users who appreciate beautiful, intuitive design • Those seeking peace of mind in their financial planning • Anyone who wants to understand their money flow patterns START YOUR FINANCIAL RHYTHM TODAY Download Rythm and experience the future of personal finance. Watch your money flow, understand your financial rhythm, and take control of your financial future with confidence and clarity. Transform your relationship with money. Download Rythm now. Rythm - Where every second counts in your financial journey.
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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.