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 FREE Super Unlimited Proxy
Welcome to VPN FREE: Unlimited, your go-to iOS app for the ultimate Private Browsing and secure online experience!
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.6
4,193 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.
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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 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 VPN FREE Super Unlimited Proxy: 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
Offer a wider variety of servers in free tier.
Assumption to check: Limited server options for free users
Validate with people who use this workflow before building.
Hypothesis 2
Simplify subscription tiers and make benefits clearer.
Assumption to check: Confusing premium subscription options
Validate with people who use this workflow before building.
Hypothesis 3
Optimize server response times and provide faster connections.
Assumption to check: Slow connection times reported by users
Validate with people who use this workflow before building.
Hypothesis 4
Reduce ad frequency or offer an ad-free subscription option.
Assumption to check: Frequent ads interrupting user experience
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
Welcome to VPN FREE: Unlimited, your go-to iOS app for the ultimate Private Browsing and secure online experience! Our app offers a blazing-fast VPN service with servers strategically located across various countries, ensuring you can browse the web anonymously and securely wherever you go. + Get instant, private browsing freedom with the VPN FREE Super Unlimited Proxy App! + -- Protect your identity now with our fast Free VPN! -- Key Features: 1. Blazing-Fast VPN Servers: Experience lightning-fast internet speeds while keeping your history hidden with our extensive network of VPN servers. Connect to servers in multiple countries for a private, encrypted, and efficient online presence. 2. Private Browsing & Enhanced Security: Turn any session into a private browsing experience. VPN FREE: Unlimited encrypts your internet connection and masks your IP address, ensuring your personal data and browsing history remain completely invisible to hackers, trackers, and prying eyes. 3. AdBlocker Features: Say goodbye to annoying ads and invasive trackers! Our built-in AdBlocker feature ensures a cleaner, faster, and more private browsing experience, allowing you to surf the web without being followed by advertisers. 4. On-Demand VPN: Take control of your online anonymity with our On-Demand VPN feature. Automatically activate the VPN when visiting specific sites or joining public Wi-Fi, ensuring a private connection exactly when you need it. 5. Battery-Optimized Mode: Optimize your device's battery life without compromising on privacy. Our Battery-Optimized Mode allows you to enjoy the benefits of a VPN without draining your battery, and auto-disconnects the VPN whenever the device goes asleep to save power. 6. Earn Shields for your activity: Collect shields through our loyalty program and unlock amazing rewards! You can trade them for exclusive perks! Enjoy a strictly ads-free private experience, get premium access & more! 7. Subscription Plans: Choose from flexible subscription plans to unlock premium features and enhance your Private Browsing experience. Manage your subscriptions effortlessly and cancel anytime in your device settings. + Use Free VPN Unlimited App to anonymize your connection and browse privately with one tap. --- Simple yet Powerful Private VPN App Solution! --- Why Choose VPN FREE? • Fast and Reliable: Enjoy a seamless private browsing experience with our high-speed VPN servers. • True Private Browsing: Mask your digital footprint and protect sensitive data with robust encryption. • Ad-Free Experience: Stop trackers and intrusive ads for a cleaner internet experience. • On-Demand Control: Activate privacy protocols only when you need them, preserving bandwidth and battery life. • User-Friendly Interface: Our app is designed with simplicity in mind, making private browsing easy for users of all levels. -- Enjoy anonymous browsing with our trusted Free VPN App! -- Download VPN Free Unlimited: Fast Proxy now and take control of your online security and anonymity. Experience the freedom of a fast, reliable, and private VPN service at your fingertips! By downloading or using the app, you are agreeing to the Apple standard Terms of Service. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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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
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Zustand
Axios
React Navigation
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.
