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
Fever: Events & Tickets
DISCOVER THE BEST EXPERIENCES IN YOUR CITY
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
72,658 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 included17 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
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 Fever: Events & Tickets: map the core Entertainment 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
Implement personalized recommendations based on user preferences.
Assumption to check: Limited event discovery features
Validate with people who use this workflow before building.
Hypothesis 2
Create a more intuitive ticket management interface.
Assumption to check: Difficult ticket management system
Validate with people who use this workflow before building.
Hypothesis 3
Streamline the payment process and provide clear pricing details.
Assumption to check: In-app purchase issues
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to customize notification settings for events.
Assumption to check: Notification overload
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
DISCOVER THE BEST EXPERIENCES IN YOUR CITY With Fever, the wealth of events happening in your city is at your fingertips. Discover what to do, where to go, and what to visit. Find local events, secret places, and trendy pop-ups, some of which are available exclusively on Fever. DISCOVER EXCLUSIVE EVENTS THAT YOU CAN ONLY FIND ON FEVER: Jurassic World: The Exhibition Stranger Things: The Experience The Queen's Ball: A Bridgerton Experience Van Gogh: The Immersive Experience And many more! UNIQUE FEVER FEATURES: - Exclusive events: Access to exclusive events that you can only find on the Fever platform. - Fever Club: A reward system on all ticket purchases thanks to your Fever wallet. - Fever filters: Handy filters that allow you to search by date & time. - Favorite events: A list of your favorite experiences for easy access to the events that you like the most. - Ticket transfers: An easy ticket transfer system that allows you to send friends and family tickets with no fuss. - Map of event locations: An up-to-date map that shows you the events near you and in your city. - User-based recommendations: Personalized recommendations for events and experiences based on your likes. - Fully mobile, paper-free tickets: No printer required as tickets are scanned from your mobile device. - Customer Support: 24/7 chat service with our Customer Support team, available in 8 languages. ALL TYPES OF EVENTS AND EXPERIENCES - Tours, trips, adventure: Discover new places and experiences in your city that you've never even heard of! - Arts & museums: Visit your city’s cultural havens for a tranquil day out. - Concerts & festivals: Watch your favorite musicians and artists as they perform at some of the most exclusive venues in your city. - Theater, comedy, shows, & AMC cinemas: Laugh, cry, sing and shout at the best shows and latest movie screenings. - Food experiences: Taste the world at a wide variety of gastronomic experiences. - Drinks & after-work activities, nightlife, parties: Dance the night away at some of the city’s hottest nighttime spots. - And much more! AVAILABLE CITIES IN THE US: New York, San Francisco, Los Angeles, Miami, Boston, Chicago, San Diego, Washington DC, Atlanta, Philadelphia, Seattle and many more! To check out the Fever platform and for any other information, you can take a look at our website https://feverup.com/en or contact our 24/7 support service via chat, phone and email at [email protected].
Written user reviews are not shown here. Check current App Store reviews >
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
Supabase
React Navigation
Zustand
BUILD KIT DIFFICULTY
Expert
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.
