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.
Explore infinite Mandelbrot and Julia fractals on Mac, iPhone, and iPad
$2.99
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.
Kit ready. Verify your email to download it.
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 MandelKit: Fractal Explorer: 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: Expensive subscription
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Missing features
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Poor performance
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.
Explore infinite Mandelbrot and Julia fractals on Mac, iPhone, and iPad. MandelKit combines native Apple Metal rendering, arbitrary-precision deep zoom, expressive 2D color, illuminated 3D relief, and huge tiled exports in one creative studio. ZOOM BEYOND ORDINARY LIMITS • Explore Mandelbrot, Julia, Burning Ship, Multibrot, Multijulia, and Multicorn formulas. • Navigate smoothly with mouse, trackpad, touch, or exact high-precision coordinates. • Continue deep into structures that exceed ordinary floating-point precision. • Watch progressive rendering refine the visible image while you work. CREATE A DISTINCTIVE LOOK • Choose independent exterior and interior color sources. • Use built-in or custom gradients, cyclic palettes, potential coloring, domain coloring, interference, orbit traps, and more. • Add contours, field lines, distance bands, ambient occlusion, boundary glow, curvature, textures, and coordinated style presets. • Fine-tune supersampling and detail-preserving filters. SCULPT FRACTALS IN 3D • Turn fractal measurements into an illuminated height field. • Move the relief camera independently from fractal navigation. • Adjust height, smoothing, material, directional or point light, and horizon. SAVE, SHARE, AND EXPORT • Save exact regions with coordinates, colors, effects, lighting, and 3D camera settings. • Keep private regions synchronized through iCloud when you choose. • Publish a separate public copy only after explicit confirmation, or share privately by link. • Export PNG, JPEG, or TIFF while preserving the visible composition. • On Mac, create disk-backed tiled 2D exports up to 100,000 × 100,000 pixels—even beyond the maximum size of a single Metal texture. MandelKit includes a complete in-app manual and a carefully adapted interface for Mac, iPhone, and iPad.
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.