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.
Every single knot from the NetKnots.com website! All the knots, all the animations, all the instructions from the top knot reference in the world! Have it all at the tap of a button
$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 Net Knots: 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 knot categories, which may not cover all user needs.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of user-generated content or community features.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Static images may not effectively convey complex knot-tying techniques.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Subscription model may deter some users.
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.
Every single knot from the NetKnots.com website! All the knots, all the animations, all the instructions from the top knot reference in the world! Have it all at the tap of a button. No internet required, no advertisements, no in-app purchases; Completely self contained. This App features everything from the website and are the same knot illustrations provided in print form to the US Department of Defense, US Customs and Border Patrol, Navy Seal Museum, Australian Navy Cadets, Girls Scouts and Boy Scout troops. Features and Functions: • 114 Rope Knots • 72 Fishing Knots (most of any app or website) • 27 Other Knots for fashion • 213 total unique knots with more always coming! • Watch the knots tie themselves and pause and restart the animation anytime. • Detailed static illustrations from the best selling knot illustrator in the world • Browse by category of knot, typical use of a knot or by knot name. • Save Favorite Knots • Search Box Fishing Knots included: 100% Arbor Knot, Alberto Knot, Albright Special, Arbor Knot, Australian Plait, Aussie Quickie, Baja Knot, Berkley Braid Knot, Bimini Twist, Blood Knot, Bobber Stopper Knot, Bristol Knot, Centauri Knot, Clinch Knot. Davy Knot, Double Uni Knot, Double-Double Uni, Drop Shot Rig, Dropper Loop, Egg Loop Knot, Eye Crosser Knot, FG Knot, Fish N Fool Knot, Harvey Dry Fly Knot, Haywire Twist, Homer Rhode Loop Knot, Hook Removal - Advance & Cut, Hook Removal - String Yank, Improved Clinch Knot, J Knot, Jack's Knot, Jansik Special, King Sling, Knot Tyer Nail Knot, Knotless Knot, Kreh Loop, Kryston Loop Knot, Loop To Loop Knot, Nail Knot, NanoFil Knot, Needle Knot, Non Slip Loop Knot, Offshore Swivel Knot, Orvis Knot, Orvis Tippet Knot, Palomar Knot, Perfection Loop, Pitzen Knot, Rapala Knot, Riffle Hitch, Right Angle Rig, San Diego Jam Knot, Seaguar Knot, Slim Beauty Knot, Snell Knot - Uni Version, Snell Knot -Traditional, Snell Knot - Easy Version, Spider Hitch, Strike Indicator Loop Knot, Strike Indicator - Double Uni, Surgeon's Knot, Surgeon's End Loop, Tenkara Level Line, Tenkara Traditional Line, Trilene Knot, Turle Knot, Uni Knot, Willis Knot, World Fair Knot, Yucatan Knot (72) Rope Knots included: Adjustable Grip Hitch, Alpine Butterfly Bend, Alpine Coil, Anchor Bend, Artilleryman's Loop Knot, Ashley's Bend, Autoblock Knot, Bachmann Knot, Backup Knot, Barrel Hitch, Barrel Sling, Better Bow Knot, Blake’s Hitch, Boom Hitch, Bowline, Bowline On A Bight, Buntline Hitch, Butcher's Knot, Butterfly Knot, Carrick Bend, Cat's Paw, Cleat Hitch, Clove Hitch, Clove Hitch on a Bight, Common Whipping, Constrictor Knot, Cow Hitch, Distel Hitch, Double Bowline, Double Fisherman, Double Overhand Stopper, Farmer's Loop, Figure Eight, Figure Nine, Fireman's Coil, Fisherman's Knot, Flemish Bend, French Whipping, Girth Hitch, Half Hitch, Halter Hitch, Halyard Hitch, Handcuff Knot, Hanson Knot, Harness Bend, Heaving Line Knot, Highwayman's Hitch, Honda Knot, Icicle Hitch, Japanese Square Knot, Klemheist Knot, Knute Hitch, Lanyard Knot, Marl, Marlinespike Hitch, Midshipman's Hitch, Monkey Fist, Mooring Hitch, Munter Hitch, One Way Knot, Ossel Hitch, Overhand Bend, Overhand Knot, Overhand Loop Knot, Pile Hitch, Portuguese Bowline, Prusik Hitch, Racking Bend, Rolling Bend, Rolling Hitch, Running Bowline, Quickie Coil, Sailor's Coil, Scaffold Knot, Schwabisch Hitch, Sheep Shank, Sheet Bend, Sledge Knot, Slip Knot, Slipped Buntline, Slipped Clove Hitch, Slipped Constrictor, Slipped Overhand Knot, Slipped Sheet Bend, Slippery Eight Loop, Spanish Bowline, Square Knot, Square Lashing, Stevedore Stopper, Stopper Knot, Strangle Knot, Tautline Hitch, Tautline Hitch to Rope, Thief Knot, Timber Hitch, Transom Knot, True Lover's Knot, Trucker’s Hitch, Tucked Sheet Bend, Tumble Hitch, Valdotain Tresse, Water Knot, West Country Whipping, Yosemite Bowline, Zeppelin Bend, Z Drag System. Plus 27 other knots for fashion like necktie knots etc.
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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.