App Overview

Animated Fishing Knots icon

Animated Fishing Knots

PRO-KNOT · Sports

#1 Fishing Knot App on iTunes since 2009

$0.99 · In-app purchases

PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.2
16 ratings · Top 30%

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.

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A product spec, screen plans, and build steps for your coding agent.

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What's included16 files

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

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.

Screen plan

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.

Differentiate and validate

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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Quick prompt

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Animated Fishing Knots: map the core Sports workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

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Opportunities

AI-GENERATED OPPORTUNITY HYPOTHESES

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

Expand the library of knots with user submissions or community contributions.

Assumption to check: Limited knot variety compared to competitors

Validate with people who use this workflow before building.

Hypothesis 2

Simplify the paywall and clearly communicate benefits of premium features.

Assumption to check: In-app purchases can be confusing

Validate with people who use this workflow before building.

Hypothesis 3

Optimize video playback and consider offline access for users.

Assumption to check: Videos may not play smoothly on all devices

Validate with people who use this workflow before building.

Hypothesis 4

Add sharing capabilities to allow users to share favorite knots on social media.

Assumption to check: Lack of social sharing features

Validate with people who use this workflow before building.

App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

App Store description

#1 Fishing Knot App on iTunes since 2009. Continually updated to keep it the best. #1 Sports App in 25 countries. A "TOP 10 BOATING APP FOR THE IPHONE" by PropTalk Magazine, May 2010 issue. 60 Best Fishing Knots = Most fishing knots and best value in the store. Plus 2 emergency hook removal techniques! Animations are a great way to learn to tie knots. The Animated Fishing Knots App makes learning to tie knots easy and fun! Each of 60 fishing knots has its own animation video, a picture of the finished knot and a description of the knot’s use. The following 60 best fishing knots are included (the most fishing knots of any App in the store): Knots for tying on tackle: •Baja Knot •Berkley Braid Knot •Centauri Knot •Davy Knot •Drop Shot Rig •Egg Loop •Eye Crosser Knot (Knot Wars winner) •Fish N Fool Knot (Knot Wars winner) •Harvey Dry Fly •Improved Clinch Knot •Jansik Special •Knotless Knot •NanoFil Knot •Offshore Swivel Knot •Orvis Knot •Palomar Knot •Pitzen Knot •San Diego Jam Knot •Snell Knot new Easy Version! •Snell Knot Uni version •Snell Knot Traditional version •Trilene Knot •Turl Knot •Uni Knot •World’s Fair Knot Knots for tying two lines together: •Alberto Knot •Albright Special •Australian Plait •Blood Knot •Double Uni Knot •FG Knot •J Knot •Loop To Loop Knot •Nail Knot •Seaguar Knot (Fluorocarbon to mono) •Slim Beauty (Awesome leader knot) •Surgeon’s Knot •Willis Knot •Yucatan Knot Knots for tying loops in line: •Bimini Twist •Dropper Loop •Homer Rhode Loop Knot •King Sling •Non Slip Loop Knot •Perfection Loop •Rapala Knot •Spider Hitch •Surgeon’s End Loop Miscellaneous •Arbor Knot (Tie line to reel) •Bobber Stopper Knot •Haywire Twist •Hook Removal (two techniques, animated) •'Knot Tyer' Tool Nail Knot •Two Strike Indicator Knots •Two Tenkara Knots! Features: - 60 carefully selected best fishing knots - Knots are listed and searchable alphabetically by name or by category and use. - Zoom, Pause, and Play the video with controls - Info page shows completed knot and gives information about the knot and its use. Email us your comments and suggestions. We would love to hear from you. [email protected]

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Screenshots

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Build scope

Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.

Define the first version

Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.

Set boundaries

Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.

Check the hard parts

Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.

SUGGESTED BUILD STACK
React Navigation
Expo
Axios
React Native Reanimated
React Native Vector Icons
React Native Async Storage
BUILD KIT DIFFICULTY
Starter

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.