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.
The 3D head reference built for artists, not engineers
$3.99 · 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 Face Model: 3D Head Reference: 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 customization options for the 3D model
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Performance issues with complex models
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of user engagement features like sharing
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: High price point for the app
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.
The 3D head reference built for artists, not engineers. Shape any face with hundreds of morphs, study a real anatomical skull, and browse hundreds of categorized face photos — all in one app on your iPad. Perfect for portrait artists, manga creators, character designers, animators, comic illustrators, concept artists, and anatomy students. ◆ FULLY CUSTOMIZE 3D HEADS Customize every detail with hundreds of morphs. Adjust head shape, eyes, nose, ears, mouth, and cheeks to create any face you can imagine — from realistic portraits to stylized anime characters. ◆ TRANSFORM HEADS INTO CREATURES Turn a realistic human head into aliens, vampires, zombies, demons, goblins, or animal hybrids with 20 ready-made creature presets. Built for character designers, concept artists, and storytellers. ◆ EXPRESSIVE FACES 17 facial expression morphs bring your characters to life — happiness, anger, surprise, sadness, fear, and more. Mix and match to create unique emotions for illustrations, animation frames, and storyboards. ◆ INTERACTIVE 3D SKULL Study anatomy with a fully interactive 3D skull. Rotate, zoom, and even open and close the jaw to understand the structure beneath the skin — an essential reference for serious portrait artists and anatomy students. ◆ MANGA HEAD MODE Create expressive manga-style characters with a dedicated stylized head mode — designed for manga, anime, and comic creators. ◆ HUMAN FACE REFERENCE LIBRARY Hundreds of high-quality face photos, categorized by ethnicity: Asian, Black, White, Hispanic, South Asian, and MENA (Middle East and North Africa). Build more inclusive and accurate artwork with diverse, authentic references. ◆ SINGLE & MULTI-VIEW PHOTOS Two reference types: single-view photos for head-on study, and multi-view images showing front, side, and three-quarter angles — perfect for understanding face structure from every direction. ◆ SPLIT VIEW EDITING See your model from two camera angles at the same time. Adjust features and expressions with precision, without constantly rotating the scene. ◆ FLEXIBLE LIGHTING Control lighting angle and intensity to shape mood and form — ideal for dramatic portrait references or anatomy studies. ◆ WORKS IN ANY ORIENTATION Use the app vertically or horizontally on iPad — perfect alongside your drawing tablet or sketchbook setup. EVERYTHING YOU GET - Realistic 3D male and female head models - Manga-style head mode - Interactive 3D skull with movable jaw - Hundreds of customizable morphs - 20 pre-made creature presets - 17 facial expression morphs - Face reference library sorted by ethnicity - Single-view and multi-view photo references - Split view dual-camera editing - Freely rotate head and eyes - Save and load custom poses - Capture and save screenshots - Adjustable lighting angle and intensity - Pan, zoom, and rotate with touch controls - Works in portrait and landscape on iPad Whether you're a portrait artist, illustrator, character designer, animator, comic or manga creator, concept artist, or anatomy student — Face Model is built to make your creative process faster, more accurate, and more inspired. Volume discounts available for schools and educational institutions. Download Face Model and bring every face to life. Works on iPhone. Best experienced on iPad.
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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.