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 proxy - TipTop VPN
Are you looking for a free VPN for a fast and stable connection? Try TipTop VPN - your ticket to free internet access! Enjoy a fast and secure connection without limiting yourself
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
7,296 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
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
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Combine features and design from your favorite apps.
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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 VPN proxy - TipTop VPN: 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
Implement automatic reconnection and better server stability.
Assumption to check: Frequent connection drops
Validate with people who use this workflow before building.
Hypothesis 2
Expand server locations to improve user choice.
Assumption to check: Limited server locations
Validate with people who use this workflow before building.
Hypothesis 3
Redesign settings for easier navigation and clarity.
Assumption to check: Confusing settings layout
Validate with people who use this workflow before building.
Hypothesis 4
Optimize server performance and user experience.
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
Are you looking for a free VPN for a fast and stable connection? Try TipTop VPN - your ticket to free internet access! Enjoy a fast and secure connection without limiting yourself. Free VPN proxy connection is available in 3 different locations! ▢ Fast Servers TipTop VPN provides a fast VPN proxy to allow you to enjoy smooth and uninterrupted internet surfing. No delays, just an instant connection to your favorite resources. ▢ Robust Protection Our app provides strong encryption, protecting your personal data and online privacy. Now you can use public Wi-Fi networks with confidence. ▢ Easy to Use TipTop VPN's interface is designed with user-friendliness in mind. Launch the app, click "Connect," and you're ready to surf the web safely and anonymously. ▢ Gaming TpTop VPN provides the perfect connection for gamers. Stability and low ping ensure uninterrupted gaming sessions, allowing you to enjoy virtual worlds. Play Pubg with pleasure! ▢ Anonymous Access to Adult Content Our VPN app will provide anonymity and security, enjoy adult movies without revealing your identity in complete privacy. Benefits of our VPN: - Modern encryption - Worldwide servers - No logging policy - Simple interface - Free VPN usage - No limits traffic and restrictions speed - Openvpn, IKEv2, and Wireguard protocols - No advertising VPN (virtual private network) technology creates an encrypted and secure "tunnel" between your device (like a computer, smartphone, or tablet) and a remote server, which may be in another part of the world. When you connect to a VPN, all data transmitted between your device and the server is protected by strong encryption. This means that even if someone tries to intercept this data, they won't be able to read it because of the encryption. Your traffic passes through this encrypted tunnel, making you invisible to unauthorized observers, including your ISP and intruders. Your IP address, which is normally used to identify your device on the Internet, is replaced by the IP address of the server. This allows you to remain anonymous and will enable you to change your virtual location. Note: 1. Please note that using VPN for illegal purposes is prohibited. 2. Unfortunately, the service does not work in China. Our support team is ready to help you and answer all your questions anytime: https://tiptop-vpn.com/ru/support/. Terms of Use (EULA): 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
Zustand
Axios
React Navigation
expo-network
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.
