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
FlySafe: Flight Safety Score
FlySafe helps you choose safer flights with predictive flight safety scores — based on pilot experience, aircraft reliability, maintenance quality, turbulence, and 30+ years of historical aviation accident data.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
649 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.
Build your own version
Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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 FlySafe: Flight Safety Score: 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
Provide detailed incident reports and explanations.
Assumption to check: Limited information on airline incidents
Validate with people who use this workflow before building.
Hypothesis 2
Simplify user interface for managing subscriptions and provide clear benefits.
Assumption to check: Complex subscription management
Validate with people who use this workflow before building.
Hypothesis 3
Implement verification for user reviews to ensure authenticity.
Assumption to check: Inconsistent user reviews quality
Validate with people who use this workflow before building.
Hypothesis 4
Introduce a feature for personalized airline suggestions based on user preferences.
Assumption to check: Lack of personalized recommendations
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
FlySafe helps you choose safer flights with predictive flight safety scores — based on pilot experience, aircraft reliability, maintenance quality, turbulence, and 30+ years of historical aviation accident data. ▶ FLIGHT SAFETY SCORES • See an overall safety rating for your flight. • Scores for Pilot, Aircraft, Maintenance, and Turbulence. • Estimates only, not guarantees. ▶ RELATED PAST ACCIDENTS • Instantly review similar past incidents. • See accident records by airport, airline, or aircraft. • Understand historical risks before booking. ▶ GLOBAL ACCIDENT DATABASE • Access FlySafe’s global aviation accident database. • Updated daily with the latest incidents. • Filter by date, airline, aircraft, or location. ▶SUPPORTIVE COMMUNITY • Join a global community of safety-focused travelers. • Share your flights and see others' journeys. • Use the pray emoji to send encouragement and reduce anxiety. FlySafe gives you peace of mind for every flight. Eliminate your anxiety and fear of flying with FlySafe. --- Disclaimers • Flight safety scores are predictive estimates only, based on matching historical public aviation data. We cannot guarantee future outcomes. FlySafe is not affiliated with any airline, government agency, or aircraft manufacturer. • Learn more: https://jinx-labs.notion.site/FlySafe-Disclaimers-205867ffbbb5807c905ce9dbb2ecf462 Data Sources • All data used are publicly available and sourced from government agencies like the FAA (Federal Aviation Administration) and NTSB (National Transportation Safety Board). • Learn more: https://jinx-labs.notion.site/FlySafe-Data-Sources-205867ffbbb5807c9acaf6e849c41fd8 Score Calculation • Scores are generated by FlySafe’s proprietary AI models trained on 30+ years of historical global aviation accident data. Scores reflect general historical trends only and are not reviewed, certified, or approved by any regulatory authority. • Learn more: https://jinx-labs.notion.site/FlySafe-Methodology-205867ffbbb580a5b734c7e0bb8c63d4 Subscription: • FlySafe can be used for free to browse limited flight data. Optionally, users can purchase the Premium Plan to access all data (either $9.99/week or $29.99/year). The subscription unlocks all features and content. Payment will be charged to your Apple ID at confirmation of purchase and will auto-renew unless canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription anytime in your App Store account settings. Terms of Use • https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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
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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.
