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
Princess Cruises
The Princess Cruises app is your vacation guide and key to planning and unlocking experiences onboard
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 2.4
3,216 ratings · Below Average
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 included18 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 Princess Cruises: map the core Travel 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
Simplify navigation with clearer icons and labels.
Assumption to check: Poor user ratings suggest complicated navigation.
Validate with people who use this workflow before building.
Hypothesis 2
Implement advanced filters for date, price, and amenities.
Assumption to check: Limited search filters.
Validate with people who use this workflow before building.
Hypothesis 3
Enhance booking flow with clear steps and confirmations.
Assumption to check: Booking process is unclear.
Validate with people who use this workflow before building.
Hypothesis 4
Add in-app messaging or support chat for user assistance.
Assumption to check: Lack of in-app support.
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
The Princess Cruises app is your vacation guide and key to planning and unlocking experiences onboard. Before you arrive, use this app to: - Save time at the port by checking in and providing required travel documentation through our guided OceanReady® steps - Make dining reservations at our main dining rooms and specialty restaurants - Ensure you're getting the most out of your vacation by purchasing a Princess Plus® or Princess Premier® Package - Book shore excursions for each port day of your cruise - Learn about onboard activities, events, and view detailed deck plans - Book a treatment or salon service at the Lotus Spa Once onboard, connect to our ship's MedallionNet wifi so you can: - Order food, beverages, amenities and more - anytime, anywhere via OceanNow® service (one-time fee applies, complimentary with Plus and Premier Package) - Complete required Safety Essentials steps before setting sail. - Explore the ship and get navigation instructions to venues and points of interest - Locate shipmates in real-time and get navigation instructions to them - View and bookmark onboard events and activities for each day - View, make, and manage dining reservations - Get help 24/7 via CrewCall chat - View and book shore excursions – Track onboard spending and package redemption statuses in real-time and much more! We are continuously improving our experience - be sure to turn on automatic updates to ensure you have the latest features.
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
Axios
React Navigation
React Query
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.
