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 by Free VPN Pte Ltd.
free vpn for iphone - the #1 vpn solution for unparalleled speeds, security, and reliability on all devices
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
10,175 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's included18 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 by Free VPN Pte Ltd.: 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
Expand server network and offer more country options.
Assumption to check: Limited server locations available
Validate with people who use this workflow before building.
Hypothesis 2
Implement advanced features for power users.
Assumption to check: No advanced features like split tunneling
Validate with people who use this workflow before building.
Hypothesis 3
Improve server reliability and connection speed.
Assumption to check: Occasional connection instability
Validate with people who use this workflow before building.
Hypothesis 4
Provide an ad-free subscription model.
Assumption to check: Ads can be intrusive
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
free vpn for iphone - the #1 vpn solution for unparalleled speeds, security, and reliability on all devices. safeguard your online activities with complete anonymity, encrypted location, ip address, and private browsing history. **key features**: *browse securely: connect to over 1000 servers across 20 countries to browse the internet securely. enjoy blazing-fast speeds with unlimited data and bandwidth. *access anywhere: keep your online activities anonymous and hide your real ip address. *account feature: unlock the vip experience by logging in. access premium features seamlessly across multiple devices. *multiple platform support: enjoy vpn proxy on various devices. our service supports laptops and mobile phones, ensuring a secure browsing experience on multiple platforms. *no registration needed: experience hassle-free connection with no registration or login required. enjoy ad-free browsing for your first 3 days and automatic connection to the fastest vpn server available. *lightning-fast speed: our technology automatically connects you to the nearest server, providing unbeatable connection speeds on any network. *ultra-secure servers: vpn master proxy employs industry-standard encryption protocols to secure your data and protect your online activities. *worldwide servers: choose from 20 countries for global content access without compromising your security. *no logs policy: rest easy with our strict no-logs policy. we do not track or store your online activity for complete peace of mind. *next-generation protocols: access openvpn and ikev2 vpn protocols for enhanced speeds, security, and reliability. *easy troubleshooting: say goodbye to connection issues with our smooth quickstart process. enjoy seamless browsing without the frustration. *premium service: upgrade for premium servers, unlocking fast and unlimited connections at affordable prices. *what users say: "[...] from china to dubai, i can tell you that this is the best vpn ever." "[...] just a few clicks, and i can browse any site." "[...] i’m able to communicate with my family everywhere." *download vpn proxy now to revolutionize your online experience. for support, contact us at [email protected]. * terms & conditions: premium plans starting at $9.99 upgrade for more features with auto-renewable subscription options. manage subscriptions in your itunes account settings. cancel during the free trial, but note that any unused portion will be forfeited. for terms of service and privacy policy, visit terms and privacy. - privacy notice: https://freevpn.co/privacy-notice - terms of use: https://freevpn.co/terms-of-service
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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.
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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.
