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.
Not sure which knot you need? Knot IQ helps you choose the right one, then shows you how to tie it in true interactive 3D.
$4.99 · 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 Knot IQ: 3D Knot Tying: 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 user engagement features like quizzes or challenges
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of community features for sharing techniques
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No offline access to content once downloaded
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Premium features may not justify the cost
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.
Not sure which knot you need? Knot IQ helps you choose the right one, then shows you how to tie it in true interactive 3D. Built by The Bear Essentials, Knot IQ is a practical knot-tying guide with 300+ knots for fishing, camping, climbing, boating, bushcraft, rescue, arborist work, scouting, and everyday rope work. Download the enhanced 3D knots you need and keep learning offline. CHOOSE WITH KNOTFINDER Start with the job, not the knot’s name. Answer a few quick questions about what you are doing. KnotFINDER narrows the choices, explains why each recommendation fits, and helps you compare your options. CONTROL EVERY STEP IN TRUE 3D Rotate the knot freely, zoom in, scrub through every step, reverse the sequence, pause, and change the playback speed. Adjust the rope colours for better visibility or switch to left-handed mode. LEARN WHERE AND WHY A KNOT WORKS Go beyond memorizing an animation. Review practical uses, strengths, trade-offs, and related knots. Interactive scenes show where knots belong in real situations: tap a task to see what to tie and where. 300+ KNOTS, ORGANIZED YOUR WAY Search by name, browse by activity or knot type, filter your library, save favourites, and build custom lists. Use the Downloaded filter to find the 3D knots you have saved for offline learning. Explore fishing and fly-fishing knots; camping and bushcraft knots; climbing, rescue, and firefighting knots; boating, sailing, and marine knots; arborist, hoisting, and rigging knots; scouting knots and lashings; plus necktie knots, shoelaces, household, utility, decorative, and specialty ropework. Learn essentials such as the Bowline, Clove Hitch, Figure Eight, Sheet Bend, Taut-Line Hitch, Trucker’s Hitch, Prusik, and Munter Hitch—plus hundreds of specialized bends, bindings, friction hitches, lashings, loops, splices, stopper knots, and quick-release knots. KEY FEATURES • 300+ knots and growing • True interactive 3D knot models • Rotate, zoom, scrub, reverse, pause, and change speed • Guided KnotFINDER recommendations with explanations • Offline access to downloaded 3D knot resources • Interactive scenes and practical use guidance • Rope-colour controls and left-handed mode • Favourites, custom lists, search, filters, and related knots • Expert guides and video tutorials from The Bear Essentials • One-time purchase with no ads or subscriptions • No data collected • Apple Family Sharing Made for beginners and experienced knot tyers alike. Learn. Craft. Explore. Safety note: Knot IQ is an educational reference. For climbing, rescue, arborist, marine, and other safety-critical uses, follow qualified instruction, inspect your equipment, and use the procedures required for your activity.
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.