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.
Why Choose SankeyMaster?
$19.99 · 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 SankeyMaster: Sankey Diagram: map the core Graphics & Design 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: Limited export options for diagrams
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Difficulties in editing existing diagrams
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of templates for quick diagram creation
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Inadequate user guidance for new users
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.
Why Choose SankeyMaster? • Easy Data Entry: Seamlessly input data to create personalized Sankey charts. • Data File Import: Effortlessly import Sankey chart data via CSV files. • Drag and Drop Node Adjustment: Adjust the position of each node with simple drag-and-drop functionality. • Minimalist Design: Use our user-friendly interface to create detailed data relationships with ease. • Rich Color Representation: Each node is visually distinct with different color representations. • High-Quality Export: Share and integrate your work effortlessly with high-resolution Sankey charts. • Cross-Platform Highlights: Tailored for iOS, macOS, and visionOS to ensure a seamless user experience. Where to Use SankeyMaster? • Business Analysis: Visualize financial flows, market trends, and operational efficiencies. • Academic Research: Illustrate complex research data and findings with clarity. • Marketing: Track customer journeys and measure the effectiveness of marketing campaigns. • Environmental Studies: Analyze energy flows, resource management, and sustainability metrics. • Project Management: Map out project workflows, resource allocation, and track progress. • Supply Chain Management: Trace product flow from production to delivery and analyze supply chain efficiency. • Public Policy: Visualize government budget allocations and analyze the impact of social programs and policies. • Healthcare: Study disease transmission paths and analyze the distribution and usage of medical resources. • Education and Training: Display educational resource distribution and learning paths clearly, and analyze training outcomes and learning progress. • Manufacturing: Analyze production processes and material flows, optimizing resource allocation and process efficiency. • Transportation and Logistics: Track traffic flows and transport routes, and analyze logistics distribution and traffic congestion. • Energy Management: Visualize energy consumption and production, and optimize energy distribution and utilization efficiency. • Human Resources: Map out employee workflows, track recruitment processes, and analyze workforce distribution. • Sales and Revenue Analysis: Understand the flow of sales channels and revenue streams to identify key performance indicators and areas for improvement. • Customer Service: Visualize support ticket flows, track resolution times, and analyze service efficiency. • Telecommunications: Analyze network traffic, data flow, and bandwidth usage for optimization. • Software Development: Map out development workflows, track issue resolution, and visualize project milestones. • Legal and Compliance: Track document flows, case progress, and compliance activities to ensure legal processes are streamlined. • Event Planning: Visualize the flow of tasks, resource allocation, and attendee movement to streamline event management. • Media and Content Creation: Track content creation workflows, from idea generation to publication, and analyze audience engagement. • Retail Management: Analyze product flow, inventory levels, and sales patterns to optimize retail operations. • Insurance: Visualize claims processes, policyholder data flows, and risk assessment to improve service delivery and risk management. • Real Estate: Track property transactions, visualize the flow of leads to sales, and analyze market trends. • Hospitality Management: Map out guest journeys, analyze service delivery, and optimize resource allocation. • Nonprofit Organizations: Visualize donation flows, fund allocation, and program impact to improve transparency and donor engagement. • Agriculture: Track crop production flows, analyze resource usage, and optimize supply chain management for better yield and efficiency. Whether you’re a seasoned data analyst, a curious student, or anyone looking to revolutionize data communication, SankeyMaster is your first choice for mastering the art of Sankey charting. Download now and turn your data into compelling visual narratives!
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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.