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
VYB: AI Workstation
VYB is a mobile AI workstation client for developers who run workflows on their own Mac.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.0
3 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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included18 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
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 VYB: AI Workstation: map the core Developer Tools 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 with more AI tools and features.
Assumption to check: Limited tool options compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Implement guided onboarding for new users.
Assumption to check: User onboarding is unclear
Validate with people who use this workflow before building.
Hypothesis 3
Create forums or help sections for user interaction.
Assumption to check: No community or support resources
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to customize their workspace and tool preferences.
Assumption to check: Lack of customization
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
VYB is a mobile AI workstation client for developers who run workflows on their own Mac. Use VYB on iPhone and iPad to control Codex, work in an interactive SSH terminal, and browse project files. Free includes: - Codex control - Interactive terminal - File browsing - One saved host with iCloud sync - Keyboard, trackpad, and multi-window support on iPad Pro includes: - Remote Desktop access (LAN) - One-tap Xcode build/install (LAN) - Multiple hosts - Pinned threads - Live Activities - Approval notifications - File change viewer - Terminal Git/Tmux shortcuts Pro features require a subscription (monthly or yearly). Privacy & Security: - VYB does not use analytics or ad tracking. - VYB does not provide cloud compute or relay servers. - Workflows execute on your user-owned Mac host. - Credentials are stored in Apple Keychain. - Optional iCloud sync can be used for host/settings data. Requirements: - User-owned Mac host required for full functionality. - Some features require local/private network access. - VYB for macOS (Host) must be installed and running on your Mac for some features. - Codex CLI must be installed on your Mac for Codex features. Auto-renewable subscription terms: - Subscription options: VYB Pro Monthly (1 month) and VYB Pro Yearly (1 year) - Payment is charged to your Apple ID account at confirmation of purchase - Subscription renews automatically unless canceled at least 24 hours before the end of the current period - Your account will be charged for renewal within 24 hours prior to the end of the current period - You can manage and cancel subscriptions in your App Store account settings after purchase - Privacy Policy: https://vyb.ai/privacy/ - Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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.
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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.
