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
UFO VPN: Ultra Fast Secure VPN
UFO VPN - Privacy & Security First.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
15,874 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/
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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 UFO VPN: Ultra Fast Secure VPN: 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
Implement better server management and automatic reconnection.
Assumption to check: Connection drops frequently
Validate with people who use this workflow before building.
Hypothesis 2
Provide more free server locations to attract users.
Assumption to check: Limited free server options
Validate with people who use this workflow before building.
Hypothesis 3
Offer more flexible pricing tiers or discounts for long-term subscriptions.
Assumption to check: High subscription costs
Validate with people who use this workflow before building.
Hypothesis 4
Optimize server performance and add speed indicators.
Assumption to check: Slow connection speeds
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
UFO VPN - Privacy & Security First. UFO VPN create an encrypted tunnel for your data and protect your online identity by hiding your IP address. Experience the ultimate VPN designed for total privacy. UFO VPN secures your connection with zero logs, no registration, and unlimited bandwidth. Take control of your digital privacy today. -Key Security Features 1. Strict No-Logs Policy: We never track or store your browsing activity. 2. Unlimited Data & Speed: Enjoy ultra-fast speed to access your favorite content. 3. Global Server Network: Instant access to 2000+ servers in 50+ regions. 4. AES-256 Encryption: Bank-level security protects your data on any network. 5. iOS Optimized: Seamlessly runs on iOS 14.0+ (iPhone, iPad, Mac, Apple Vision). -Why Choose UFO VPN? 1. Public WiFi Protection: Secure your connection at school, work, or while traveling. 2. Universal Access: freely browsing social media, streaming, and gaming platforms worldwide. 3. Smart Protocol Selection: Auto-switches between OpenVPN, IKEv2, Super, and V2Ray for optimal performance. -Flexible & Global Network 1. Works Everywhere: Wi-Fi, LTE/4G, 3G, and all mobile carriers. 2. Free & Premium Plans: Ad-supported free VPN available; upgrade for ad-free, uninterrupted service. 3. Advanced Protocols: Choose from AUTO/SSX (fastest), TCP , HTTPS (secure connection), or HTTPSS (max privacy). -Why Trust UFO VPN? Millions rely on our global network (Americas, Europe, Asia Pacific, MENA, Africa) for secure, fast connections. With unlimited data and bandwidth, your privacy never comes at the cost of speed. Join the Privacy Revolution Download UFO VPN now and browse with complete peace of mind. - No register or sign up. - Tap "Connect"—browse safely, anonymously. - Auto-connect to the best server, or select top regions: USA, UK, Germany, France, Japan, Singapore, UAE, and more. - Weekly: 4.99∣Monthly:4.99∣Monthly: 11.99 | Yearly: $ 69.99 - Terms of user: https://ufovpn.io/terms/ - Privacy policy: https://ufovpn.io/privacy/ - Feel free to contact us via: mailto:[email protected] - Facebook: https://www.facebook.com/ufovpnapp - Twitter: https://twitter.com/ufovpn_official
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.
SUGGESTED BUILD STACK
React Native
Expo
FastAPI
Axios
React Navigation
React Native Reanimated
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.
