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
Phone Shield Tools
Max Security VPN & Protection
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 3.9
13 ratings · Top 50%
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 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 Phone Shield Tools: 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 tool selection and regularly update.
Assumption to check: Limited tool options compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Simplify design and enhance user experience.
Assumption to check: User interface can feel cluttered
Validate with people who use this workflow before building.
Hypothesis 3
Clarify subscription benefits and improve the paywall experience.
Assumption to check: In-app purchase confusion
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
Max Security VPN & Protection Max Security VPN & Protection is designed to protect your privacy and secure your internet connection wherever you are. Get instant access to fast and reliable servers worldwide with a clean, one-tap connection experience. From everyday browsing and streaming to online shopping and public Wi-Fi usage, Max Security VPN & Protection encrypts your traffic and helps keep your personal data safe at all times. Key Features: • High-speed VPN with strong encryption • Global server network for consistent access • Secure protection on public and private networks • One-tap connection for quick privacy • Smooth and stable performance without interruptions Browse, connect, and stay protected with confidence using Max Security VPN & Protection. Free Trial & Subscription New users can unlock all premium features with a 3-day free trial. The trial can be managed or canceled at any time through your account settings. Payment will be charged to your Apple ID once the purchase is confirmed. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current billing period. You may cancel at any time, and access will remain active until the subscription period ends. Privacy Policy: https://hypervpn-proxy.com/policyinfo.html Terms of Use: https://hypervpn-proxy.com/termsinfo.html
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
React Navigation
Redux
Async Storage
React Native Gesture Handler
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.
