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
Turbli+
Introducing Turbli+, the official premium upgrade to Turbli.com.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 5.0
2 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.
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's included17 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 Turbli+: map the core Weather workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Introducing Turbli+, the official premium upgrade to Turbli.com. Access our professional-grade turbulence forecasts and maps, fully optimized for a native mobile experience, plus: - Flight History: Save past and current flights, making your full itineraries completely available in offline mode during your journey. - Forecast Statistics: View aggregated data from your saved flights, featuring detailed breakdowns of historical turbulence and thunderstorm levels. - Custom Forecasts: Manually enter your private flight schedules to instantly generate tailored forecasts. - Ad-Free: A clean interface with zero distractions. SUBSCRIPTION & ACCESS INFORMATION: Turbli+ requires a paid subscription. Users will be asked to create an account and select a subscription plan in order to use Turbli+ features. BUILT FOR ANXIOUS FLIERS: Turbli+ is designed with anxious flyers in mind. The app includes supportive resources, featuring educational articles and strategies to help you overcome the fear of flying by truly understanding the psychology behind it. The full details of these strategies are presented in the book written by Turbli's founder in collaboration with a medical professional: "Overcome Your Fear of Flying". COMPATIBILITY: This app is designed exclusively for iPhone and iPad. It does not feature an Apple Watch companion app and standalone installation on watchOS is not supported
Written user reviews are not shown here. Check current App Store reviews >
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
Enhance notifications for severe weather alerts with customizable settings.
Assumption to check: Limited data for severe weather alerts
Validate with people who use this workflow before building.
Hypothesis 2
Integrate multiple weather data sources to improve accuracy.
Assumption to check: Inconsistent accuracy of location-based weather
Validate with people who use this workflow before building.
Hypothesis 3
Introduce interactive widgets of various sizes for quick access to weather information.
Assumption to check: Lack of customizable widgets
Validate with people who use this workflow before building.
Hypothesis 4
Optimize radar map loading with caching and better data fetching strategies.
Assumption to check: Slow loading times for radar features
Validate with people who use this workflow before building.
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
React Native Maps
Zustand
BUILD KIT DIFFICULTY
Advanced
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.
