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
avoVPN
avoVPN is a client for advanced protocols v2ray, vless and vmess.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 3.2
340 ratings · Below Average
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 avoVPN: 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
Optimize server selection and connection logic for faster performance.
Assumption to check: The app has slow connection times.
Validate with people who use this workflow before building.
Hypothesis 2
Expand server offerings and allow users to request new locations.
Assumption to check: Limited server locations available.
Validate with people who use this workflow before building.
Hypothesis 3
Provide clear information about subscription tiers and benefits upfront.
Assumption to check: Unclear subscription model with hidden fees.
Validate with people who use this workflow before building.
Hypothesis 4
Create a cohesive design language and improve visual consistency across screens.
Assumption to check: Inconsistent user interface design.
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
avoVPN is a client for advanced protocols v2ray, vless and vmess. LIGHTNING-FAST SPEED avoVPN utilizes modern and advanced protocols, providing high speeds for streaming, web browsing, and handling large files. TOP-NOTCH SECURITY Built on the latest X-ray family protocols (v2ray, VLESS, VMess), avoVPN guarantees enhanced data protection and complete confidentiality. EASE OF USE The intuitive interface of avoVPN makes it easy to set up the app. The connect can be turned on and off with a single button press. HOW TO SET UP Obtain a key from your VPN provider. The app supports keys in vless:// and vmess:// formats. Simply insert the key into the app, and start browsing the internet securely and anonymously. TERMS AND PRIVACY POLICY avoVPN does not collect personal data, keep activity logs, or record your traffic. Privacy Policy: https://avovpn.net/policy/. The app is provided "as is" with no guarantees. Users must comply with laws and ethical standards when using avoVPN. Full terms: https://avovpn.net/rules/.
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
Supabase
Redux
react-native-async-storage
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.
