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
Sensor VPN - Fast & Secure
Introducing Sensor VPN! Explore a revolutionary virtual private network experience through our application, designed to swiftly and securely connect you to the Internet
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.0
1,418 ratings · Top 30%
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 included16 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 Sensor VPN - Fast & Secure: 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
Offer a wider range of global servers.
Assumption to check: Limited server options compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Implement a speed test feature to choose the fastest server.
Assumption to check: Connection speed can vary
Validate with people who use this workflow before building.
Hypothesis 3
Enhance stability with better reconnection logic.
Assumption to check: Occasional disconnections
Validate with people who use this workflow before building.
Hypothesis 4
Add a usage tracker to monitor data usage and connection history.
Assumption to check: No detailed usage statistics
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
Introducing Sensor VPN! Explore a revolutionary virtual private network experience through our application, designed to swiftly and securely connect you to the Internet. Sensor VPN boasts an intuitive interface, allowing you to establish a secure connection with the global network in just a few clicks. Our service prioritizes high-quality encryption, granting access to servers in over 12 countries while maintaining superior connection speeds. We rely on the trusted IKEv2 protocol, renowned for its excellence in the VPN industry. Additionally, we provide round-the-clock technical support. Feel free to reach out to ask anytime; our team is dedicated to promptly addressing any concerns you may have. Sensor VPN offers a comprehensive solution for your device, safeguarding your privacy and anonymity while granting you the access to website worldwide. Our advanced VPN service shields you from hackers, fraudsters. SUBSCRIPTION INFORMATION: Gain full access to our services, free from advertisements, by subscribing. Take advantage of a three-day free trial to explore the benefits. Failure to cancel at least 24 hours before the trial ends will result in automatic transition to a paid subscription. Choose from three subscription plans: weekly, monthly, or yearly. Subscription charges will be applied to your account immediately following confirmation of purchase. You may cancel your subscription or trial at any time, provided it's done at least 24 hours before the current period ends to prevent automatic renewal. Renewal charges will be applied to your account within the 24 hours leading up to the end of the current subscription period. Following purchase, subscriptions can beф managed and auto-renewal can be turned off via your Account Settings. Subscribing will forfeit any remaining free trial period. For further details, please visit our Privacy Policy, Terms of Use, and License Agreement at the following links: Privacy Policy: https://sensor-vpn.smartandsimpleintelligencellc.com/privacy.html Terms of Use: https://sensor-vpn.smartandsimpleintelligencellc.com/terms.html License Agreement: https://sensor-vpn.smartandsimpleintelligencellc.com/eula.html
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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.
