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.
FLUID CASH — UNCOMPROMISED FINANCIAL MASTERY
$1.99
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 Fluid Cash: 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: Lack of personalized user experience
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Difficulty in tracking expenses accurately
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Limited insights into spending habits
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No reminders for upcoming bills
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.
FLUID CASH — UNCOMPROMISED FINANCIAL MASTERY Fluid Cash is not just another tracker. It is a high-performance financial engine designed for precision, speed, and a premium experience. Most apps rent you your own data. We give you the tools to dominate it. THE POWER OF ONE-TIME OWNERSHIP We do not believe in the subscription trap. Fluid Cash is a professional-grade software for life. One payment. No ads. No hidden fees. No data harvesting. MONTHLY NEEDS SHIELD Take control of your committed capital. The app automatically calculates your mandatory expenses—rent, utilities, loans, and subscriptions. It shields this money from your available balance, showing you exactly what is safe to spend without compromising your obligations. VISION AI BILL SCANNER Eliminate manual entry. Using a custom Vision OCR engine, Fluid Cash scans paper bills or digital invoices to extract titles, amounts, vendors, and due dates with surgical precision. REAL-TIME FAMILY SYNC Finance is a team effort. Connect with a partner or family via CloudKit with sub-second latency. When a transaction is added, it appears on every device instantly. Track spending on a per-member basis with custom avatars and dedicated analytics. SMART CATEGORY DETECTOR The integrated heuristic engine automatically identifies and categorizes your spending as you type. It learns from your keywords, making financial logging almost entirely automated. NET WORTH TRACKER See the complete picture. Aggregate balances from multiple accounts—Cash, Bank, and Savings—into a single Net Worth dashboard. Monitor your total wealth growth and celebrate financial milestones. RECURRING EXPENSE DETECTION The system analyzes your transaction history to identify patterns. It automatically suggests new recurring bills or subscriptions to ensure your future budget is always accurate. PROACTIVE NOTIFICATION ENGINE Stay ahead of your money. Receive instant alerts for: Spending limit warnings (80% and 100% thresholds) Salary deposit confirmations Upcoming and overdue bill reminders Low balance warnings based on custom thresholds Net Worth milestones PROFESSIONAL ANALYTICS & AI INSIGHTS Visualize your cash flow with high-performance Swift Charts. The AI Insight engine provides context-aware warnings about spending spikes and tips for reaching your saving goals faster. SYSTEM INTEGRATION & PRIVACY Zero-Footprint Privacy: No external servers. Your data stays in your private, encrypted iCloud container. Multi-Style Widgets: Monitor your balance and progress from your Home Screen. Biometric Security: Secure your data with FaceID or TouchID. Interactive UI: Experience smooth, spring-based animations and a flippable digital card interface. Command your wealth. Get Fluid Cash. SUPPORT AND CONTACT Developer: Erik Geiger Email: [email protected] App URL: https://apps.apple.com/us/app/fluid-cash/id6759919408 LEGAL Terms of Use: https://erikgeiger.hu/fluidcash/terms.html Privacy Policy: https://erikgeiger.hu/fluidcash/privacy.html
Written user reviews are not shown here. Check current App Store reviews >
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.