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.
Is that blob on the beach dangerous? What’s the best treatment? The Jellyfish App is a one-stop-shop for safety and identification of jellyfish of the world
$1.99 · 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 The Jellyfish App Pro: 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 species details and imagery
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Difficult to navigate without clear categories
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No social sharing options
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of user notes feature
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.
Is that blob on the beach dangerous? What’s the best treatment? The Jellyfish App is a one-stop-shop for safety and identification of jellyfish of the world. This feature-rich app puts expert knowledge at your fingertips so you can make informed decisions that will help you have a good, fun, safe time at the beach. The Jellyfish App offers the following features: • CURRENT ALERTS: With one tap from the Home Screen, instantly see which species and localities have current alerts. • JELLYFISH NEAR ME: Instantly check what species are found near you, while an interactive map allows you to tap or type a locality to see what jellyfish occur anywhere in the world. • ASK DR LISA: Upload photos or questions for direct access to Dr Lisa-ann Gershwin, an international jellyfish expert with 25 years’ experience. You’ll not only get personalized answers back, but as well, your photos and observations will assist in tracking these fascinating creatures. You’ll be acting as a “para-scientist”, and helping science! • SPECIES INFO: Each entry contains common and scientific names, a photo, description, seasonality, locality, toxicity, sting treatment, and other interesting information. • ENCYCLOPEDIA: Instant access to a wealth of useful information about jellyfish around the world. Hundreds of species are already included, from pretty ones to dangerous ones, and more are being added regularly. • SEARCH: Find species by common name, scientific name, or image. A text search function helps even if you only know part of a name. Preloaded search options for color, size, and shape enable you to find species by feature (for example, all coin-sized species, or all purple species). • FAQ: Should you pee on a sting or does vinegar really work? Wondering when is the best time to swim, or what sort of protective clothing to use? Check out the Frequently Asked Questions for the answer to these and other queries. • MULTIPLE LANGUAGES: The Jellyfish App is now available in English, Chinese, French, and Spanish. Want to know more? See our webpage at TheJellyfishApp.com.
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.