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.
#1 Knot App on iTunes!
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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.
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Combine features and design from your favorite apps.
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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 Guide: map the core Utilities 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 types compared to competitors.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Some users find the instructions unclear.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: In-app purchases can be confusing.
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.
#1 Knot App on iTunes! Now with 204 knots (and counting)! An App Store Essentials “Weekend Warriors DIY” Pick! “Wow your friends!” – APPLEIPHONEAPPS.com “…a highly recommended app with tons of utility value…” – IPHONEAPPREVIEWS.net “What’s knot to love?” – This Old House “Knot Guide is like a patient teacher showing you again and again until you’ve got it.” – APPCRAVER.com “One of the most practical apps for those not bound by four walls.” – SAN FRANCISCO EXAMINER Need to tie a knot? Knot Guide will teach you the ropes! Now includes 204 knots (174 unique): Adjustable B, Adjustable Lp, Albright, Alpine Butterfly B, Alpine Butterfly on a Bight, Alpine Coil, Anchor B, Angler's Lp, Arbor, Artilleryman's Lp, Ashley B, Ashley’s Stopper, Bachmann H, Back Splice, Backhanded H, Barrel, Barrel H, Becket B, Bell RInger’s, Better Bow, Bimini Twist, Blake’s H, Blood, Boom H, Bottle Sling H, Bowline, Bowline B, Bowline B (Enhanced), Bowline on a Bight, Braid, Bull H, Buntline H, Butcher’s, Camel H, Carrick B, Cat’s Paw, Chain Sinnet, Cleat H (Halyard), Cleat H (OXO method), Cleat H with Round Turn, Clinch, Clove H, Clove H on a Bight, Constrictor, Countryman’s, Cow H, Daisy Chain, Davy, Diagonal Lashing, Dipping the Eye, Directional Figure Eight, Distel H, Double Alpine Butterfly Lp, Double Davy, Double Dragon Lp, Double English, Double Figure Eight Lp, Double Fisherman’s, Double Fisherman’s Lp, Double Locking Half H, Double Overhand Stopper, Double Sheet B, Double Surgeon’s Lp, Electrician’s, End-of-Rope Prusik, Eskimo Bowline, EStar Stopper, Evenk H, Eye Splice, Farmer’s Lp, Farrimond Friction H, Fender, Figure Eight, Figure Eight Follow Through, Figure Eight Lp, Figure Nine Lp, Fisherman’s, Fisherman’s B, Flat Overhand B, Flemish Flake, Four-in-Hand, Full Windsor, Gasket Coil, Girth H, Gnat H, Grapevine B, Half H, Halter H, Halyard H, Hammock H, Handcuff, Hanson Lp, Harness B, Harness Lp, Heaving Line, Highwayman’s H, Honda, Hunter’s B, Icicle H (End Method), Icicle H (Lp Method), Improved Clinch, Italian H, Johnson H, Jug Sling, Kelleg H, Killick H, Klemheist H, Knute H, Kreh Lp, Lariat, Lark’s Head, Lighterman’s H, Lumberman’s, Manger H, Marlinspike H, Michoacan Climbing H, Midshipman’s H, Miller’s (1), Miller’s (2), Monkey Fist, Mooring H, Mountaineer’s Coil, Multiple Figure Eight, Munter H, Munter Mule Combo H, Nail, Non-Slip Mono Lp, Orvis, Ossel H (complex), Overhand, Overhand Lp, Oysterman’s Stopper, Palomar, Parcel B, Perfection Lp, Pile H, Pipe H, Plank Sling, Plattsburgh, Poacher’s, Portuguese Bowline, Pratt, Prusik H, Quick H, Rapala, Reef, Reever, Rigger’s B, Right Angle, Ring H, Rolling H, Rolling H Zip Tie, Rosendahl B, Rosendahl Lp, Round Lashing, Round Turn and Two Half H, Running, Running Bowline, Sailor’s Gripping H, Sailor’s H, Sailor’s Whipping, San Diego Jam, Shear Lashing, Sheepshank, Sheet B, Sheet B One Way, Siberian H, Simple Simon Under B, Sledge, Slim Beauty, Slip, Span Lp, Spanish Bowline, Spider H, Square, Square Lashing, Stevedore, Surgeon’s, Swing H, Tarbuck, Tautline H, Timber H, Transom, Tripod Lashing, Trucker’s H (1), Trucker’s H (2), True Lover’s, Tucked Sheet B, Tumble H, Turk’s Head 3L5B, Turle, Turtle, Two Half Hitches, Underwriter’s, Uni, Vice Versa B, Violin, B, Water, Water Bowline, Weaver’s, West Country Whipping, Yosemite Bowline, Zeppelin B, Zeppelin Lp 20 Categories: Aviation, Bends, Binding, Climbing, Decorative, Fishing, Hitches (End & Middle), Lashings, Loops (Fixed & Slip), Navy SEAL, Necktie, Rope Care, Sailing, Scout, Shortenings, Splices, Stopper, Whippings. Since ancient times, people have relied on knots for sailing, climbing, crafting, and countless everyday tasks. Whether novice or experienced, Knot Guide will assist you!
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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.