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
VPN - Plane VPN Fly
Experience the ultimate digital freedom with Plane VPN Fly.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.4
43 ratings · Top 30%
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 VPN - Plane VPN Fly: map the core Utilities 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
Offer more free server choices or a trial for premium servers.
Assumption to check: Limited server options in free version
Validate with people who use this workflow before building.
Hypothesis 2
Implement server ping tests to display reliability.
Assumption to check: Connection failures on certain servers
Validate with people who use this workflow before building.
Hypothesis 3
Allow users to customize VPN protocols and server preferences.
Assumption to check: Lack of custom settings for users
Validate with people who use this workflow before building.
Hypothesis 4
Integrate a chatbot for instant support.
Assumption to check: Slow customer support response
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
Experience the ultimate digital freedom with Plane VPN Fly. Whether you are traveling the globe or browsing from home, Plane VPN Fly provides a high-speed, secure VPN connection to keep your data private and your internet unrestricted. Our fast VPN technology ensures you can stream, work, and browse without buffering or boundaries. Why choose Plane VPN Fly? Total Privacy: We protect your identity with industry-leading encryption. As a private VPN, we follow a strict no-logs policy—your business remains yours. One-Tap VPN Connection: No complex setups. Get a secure VPN connection with just one tap. High-Speed Performance: Don't let a slow VPN hold you back. Plane VPN Fly is engineered for maximum throughput. Public Wi-Fi Security: Turn any public hotspot into a secure VPN zone. Protect your sensitive information from hackers and snoopers. Plane VPN Fly is more than just a VPN proxy; it’s your ticket to a safer, faster, and more open internet. Key Features: Unlimited bandwidth for a seamless VPN experience. No registration or login required. Take flight with Plane VPN Fly today—the only VPN you’ll ever need for speed and security. Terms of Service: https://zoologicalco.com/terms Privacy Policy: https://zoologicalco.com/privacy
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.
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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.
