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 - Secure Proxy VMP ™
WHY CHOOSE VMP?
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.6
206,516 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 included16 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 VPN - Secure Proxy VMP ™: map the core Productivity 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
Improve connection stability with better server selection algorithms
Assumption to check: Frequent connection drops
Validate with people who use this workflow before building.
Hypothesis 2
Expand server locations to improve user experience
Assumption to check: Limited server locations
Validate with people who use this workflow before building.
Hypothesis 3
Simplify subscription tiers and clearly communicate benefits
Assumption to check: Confusing subscription options
Validate with people who use this workflow before building.
Hypothesis 4
Implement in-app chat support for faster resolutions
Assumption to check: Slow customer 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
WHY CHOOSE VMP? One-tap connection — Smart Server Selection finds the fastest server instantly Triple-protocol encryption — WireGuard, OpenVPN & VMPGuard (stealth) with AES-256 Strict no-logs policy — Your data is never tracked, stored, or sold Built-in speed test — Benchmark performance before and after connecting Kill switch + DNS leak protection — Zero-exposure failsafe, always on Ad & tracker blocker — Block ads, trackers, and malicious domains (Premium) Dark web monitoring — Get breach alerts for your email accounts (Premium) Earn free VPN time — Daily rewards, streaks, and watch-to-earn minutes SUBSCRIPTION OPTIONS: - Weekly: $8.99/week - Monthly: $9.99/month - Yearly: $69.99/year Payment will be charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless cancelled at least 24 hours before the end of the current period. You can manage and cancel your subscriptions by going to your App Store account settings after purchase. Privacy Policy: https://vpnmasterpro.com/privacy Terms of Use: https://vpnmasterpro.com/terms
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.
