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.
Master Math — Algebra to Calculus, Geometry to Linear Algebra
$1.99 · 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 Math Reference Book: map the core Reference 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 interactivity with content.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of depth in explanations.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Difficult navigation for large topic lists.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No personalized content.
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.
Master Math — Algebra to Calculus, Geometry to Linear Algebra Turn confusion into confidence. This all‑in‑one math companion covers Algebra, Geometry, Trigonometry & Pre‑Calc, Calculus, Statistics, and Linear Algebra with clear descriptions, beautiful visuals, and tap‑to‑reveal practice solutions. Learn faster, remember longer, and walk into every test prepared. Why it works • Clear, concise explanations that get to the point • Visual intuition with built‑in graphs and labeled diagrams • Step‑by‑step examples and practice with instant “Show Answer” • Smart organization from fundamentals to advanced topics • Tips that highlight common pitfalls and how to avoid them What you’ll learn • Algebra: equations & inequalities, systems, functions & inverses, polynomials, rational/radical expressions, exponentials & logs, sequences/series, conic sections • Geometry: lines, angles, triangles, circles, polygons, similarity & congruence, area & volume, coordinate geometry • Trigonometry & Pre‑Calc: unit circle, trig functions & graphs, identities, equations, inverse trig, transformations, advanced functions • Calculus: limits & continuity, derivatives, applications of the derivative, integrals, fundamental theorem of calculus, basic differential equations • Statistics: descriptive stats, probability, distributions, sampling, confidence intervals, hypothesis testing • Linear Algebra: vectors, matrices, systems & Gaussian elimination, determinants, eigenvalues/eigenvectors, linear transformations Perfect for • High school and college courses (Algebra 1/2, Geometry, Pre‑Calc, Calculus, Stats, Linear Algebra) • SAT/ACT and placement test prep • Homeschooling, tutoring, and independent study • Visual learners who thrive on examples and step‑by‑step guidance Learn the smart way • Bite‑sized lessons focused on one idea at a time • Clean visuals that make abstract ideas concrete • Practice problems with instant feedback to check your understanding • Progress topic by topic so you build real mastery, not just short‑term memory Master the essentials, build deep understanding, and feel confident in class, homework, and exams. Download now and see math the way it was meant to be learned — clearly. — Created by PawEng, LLC
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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.