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.
Typography Insight is an interactive textbook and professional toolkit for learning, teaching, and exploring typography.
$6.99
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 Typography Insight: map the core Education 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 interactive content, primarily static lessons
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No offline access to lessons
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of personalized learning paths
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Limited community engagement features
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.
Typography Insight is an interactive textbook and professional toolkit for learning, teaching, and exploring typography. Study the structure and history of type, inspect real font metrics, compare installed fonts, and develop your eye through hands-on exercises. Designed for students, educators, designers, and everyone who loves type. Featured as App of the Day in 119 countries. “Typography Insight will make you think differently about the words you see every day. It’s excitingly interactive.” — Apple “It’s more like an exquisite museum exhibit than a musty textbook.” — Fast Company “Learning the subtleties of Helvetica and Garamond used to be a pain—but a sleek new app has made the process easier.” — The Atlantic “Typography Insight is beautiful and fun.” — Gizmodo LEARN THE FOUNDATIONS • The Basics: Build a strong foundation through 14 visual lessons covering letterforms, spacing, hierarchy, readability, grids, and typesetting. • Type Anatomy: Explore an interactive atlas of typographic terms and locate each feature directly on a letterform. • Type Classification: Compare major historical categories through their proportions, contrast, stress, terminals, and construction. • Historical Types: Follow landmark typefaces through an interactive timeline and compare how the lowercase “g” evolved across typographic systems. • Type Size: Understand points, picas, physical size, CSS reference pixels, PPI, and practical considerations for digital media. • Leading, Tracking, and Alignment: Manipulate live text and observe how spacing and alignment shape rhythm, texture, and readability. INSPECT AND COMPARE • Type Inspector: Enlarge text without limits and study letterforms at an extraordinary scale. • Glyph Browser: Browse the characters supported by an installed font and inspect real measurements including x-height, cap height, ascender, descender, advance, and glyph width. • Side by Side: Compare the same character or specimen in two fonts with direct positioning and optional guides. • Overlay: Place two typefaces over one another, adjust their position and opacity, and discover subtle structural differences. PRACTICE BY DOING • Trace: Trace large letterforms using Apple Pencil or touch. Choose a font, adjust the guide, zoom the canvas, and draw with the PencilKit tool palette. • Typesetting: Transform raw copy into a readable page step by step—reveal structure, build hierarchy, set the measure, shape paragraphs, and tune the rhythm. • Kerning Practice: Adjust letter pairs by eye, reveal the reference spacing, and train your sense of balance with guided exercises. WORK WITH YOUR FONTS Choose from system fonts and fonts installed on your device using the native iOS font picker. Compare downloaded typefaces from font-management apps, local files, and supported font libraries. Typography Insight is fully optimized for both iPhone and iPad, with responsive layouts, light and dark appearance support, and no account required. See type differently.
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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.