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.
App Overview
OCEARCH Shark Tracker™
DIVE INTO A WORLD OF SHARKS, TURTLES, AND OTHER AMAZING MARINE ANIMALS & HELP SAVE OUR OCEANS!
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
8,772 ratings · Top 5%
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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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included19 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.
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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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for OCEARCH Shark Tracker™: map the core Education 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
Include downloadable content for offline viewing.
Assumption to check: Limited offline access to shark data
Validate with people who use this workflow before building.
Hypothesis 2
Add quizzes and gamification elements for user engagement.
Assumption to check: Lack of interactive features
Validate with people who use this workflow before building.
Hypothesis 3
Implement clearer UI for subscription details and benefits.
Assumption to check: In-app purchase confusion
Validate with people who use this workflow before building.
Hypothesis 4
Enhance map performance and error handling.
Assumption to check: Occasional bugs with map loading
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
DIVE INTO A WORLD OF SHARKS, TURTLES, AND OTHER AMAZING MARINE ANIMALS & HELP SAVE OUR OCEANS! If you have a passion for the ocean, sharks, and marine life, this app is for YOU! The Global Shark Tracker™ was created by OCEARCH, a non-profit research organization dedicated to returning our world’s oceans to balance and abundance. EXPLORE LIKE THE OCEARCH CREW, FROM THE COMFORT OF YOUR HOME! Join our scientific researchers on an exciting journey, with real-time tracking data for sharks, turtles, and more. With cutting-edge satellite technology, the OCEARCH Global Shark Tracker™ app lets you follow these amazing marine animals as they migrate across the globe. Dive into each animal’s profile to discover their history, track their movements, and learn fascinating facts about their species • Track Animals Live with Interactive Maps • Explore Migration & Movement Patterns • Access Animal Tagging & Species Details • Never Miss Updates with ‘Follow’ Option • Daily Ocean & Marine Animal Facts MAKE A DIFFERENCE AS YOU TRACK OCEARCH now has a new way that YOU can make a direct impact on our sharks and oceans! For less than the cost of a cup of coffee each month, you can upgrade to Shark Tracker+ and directly support the OCEARCH mission. Plus, enjoy these exciting new features with your subscription: • Premium Map Layers incl. Live Weather Maps • ‘Behind-The-Scenes’ Exclusive Content • Enhanced Animal Detail Page incl. Charts • Community Engagement with ‘Comments’ • Discounts in the OCEARCH Shop HOW TRACKING WORKS OCEARCH conducts scientific research and collaborates with institutions across the world! SPOT tags are used to provide near real-time tracking data for an average of 5 years. Each time the animal’s tag breaks the surface of the water, it signals a satellite to create a ‘ping’ on the tracker for YOU to see. Data is used by the scientific community to help with: • Research • Conservation • Policy • Management • Safety • Education We created this app to engage YOU in shark and marine conservation efforts by providing real-time tracking data on ocean animals. Our goal is to empower YOU to connect with the ocean, learn about marine life, and support vital marine science through interactive, accessible technology. Thank you for your interest and support. We couldn't conduct this critical ocean research without you. If you love our app, please consider supporting us by leaving a rating and review, or by sharing it with your friends. We’re always looking to improve! If you have any questions, comments, or feedback, please feel free to email us at [email protected]. OCEARCH is a 501(c)(3) non-profit organization. Our federal tax ID is 80-0708997. For more information about OCEARCH and our mission, please visit www.ocearch.org or @OCEARCH on social media to learn more. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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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 Native
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BUILD KIT DIFFICULTY
Advanced
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.
