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
Shroomify - Mushroom ID USA
Explore mushrooms, even with no signal.
$5.99 · In-app purchases
PRICE
$5.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.7
2,079 ratings · Top 15%
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 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.
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 Shroomify - Mushroom ID USA: 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
Expand database with user submissions and expert reviews.
Assumption to check: Limited mushroom database compared to competitors.
Validate with people who use this workflow before building.
Hypothesis 2
Implement a cleaner, more organized layout.
Assumption to check: User interface may feel cluttered with too much information.
Validate with people who use this workflow before building.
Hypothesis 3
Offer a freemium model or trial period to attract more users.
Assumption to check: In-app purchase for full access may deter users.
Validate with people who use this workflow before building.
Hypothesis 4
Improve search algorithms and offer better filters.
Assumption to check: Search functionality may not return relevant results.
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
Explore mushrooms, even with no signal. Shroomify is an independent mushroom field guide. Use a photo or illustrated questions to narrow down possible matches, then compare the details for yourself. IDENTIFY YOUR WAY • Photo assistance suggests a mushroom's type, cap color and other visible traits for you to check. Analysis runs on your device, without an internet connection. • Characteristic ID uses illustrated choices to narrow your shortlist, with an optional Advanced mode for finer details. • Search by common or scientific name to go straight to a species. BUILT FOR THE FIELD • Identification, the field guide and your logbook work offline once installed. • Browse 400+ species with 1,000+ photographs and regional datasets. • Typical seasonal records help order results for your selected area and month. • Expanded field guide notes and linked similar-species cards help you compare important features. • Save favorites and record finds in your personal, on-device logbook. WEATHER OUTLOOKS A free early preview combines recent and forecast weather with research into fungal records to show when conditions may be more or less favorable than usual for a species in a supported area. These outlooks need an internet connection. Coverage depends on the available evidence and current data, so not every area or mushroom has an outlook. Comparisons are with that area's usual conditions for the time of year, not a promise of how many mushrooms you will find or a ranking of one area's habitat against another. Share feedback from within the feature to help improve it. INDEPENDENT AND PRIVATE No adverts or cross-app tracking. Premium features are included on iOS, with no separate in-app purchase or subscription required in this release. Photos stay on your device unless you choose to contribute one. Photo contributions and forecast feedback are optional. Shroomify is a guide, not a guarantee. Always confirm a mushroom's identity and never eat a wild mushroom unless you are completely certain of what it is.
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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
Expo
Axios
React Navigation
Async Storage
Shadcn/UI
BUILD KIT DIFFICULTY
Intermediate
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.
