Arky vs TimeOS 2.0: Bill your hours in Notion.
Side-by-side comparison of features, pros & cons, pricing, and community votes (2026).
🏆 TimeOS 2.0: Bill your hours in Notion. leads with 109 upvotes
The canvas for thinking with AI
Arky is an innovative AI-powered thinking canvas designed for creative minds, writers, and strategists seeking a flexible yet structured environment to develop ideas. Unlike traditional writing tools that enforce linear output or purely freeform design canvases that lack structure, Arky combines the best of both worlds. It uses a markdown-based hierarchy to allow users to architect their thoughts spatially while leveraging AI assistance at every step. This makes it ideal for complex brainstorming, planning, and developing detailed concepts in a dynamic, visual format. Whether you're drafting a project, outlining a story, or organizing ideas, Arky empowers users to think deeply and creatively without feeling confined by rigid structures.
Pros
- Combines spatial flexibility with structured markdown hierarchy
- Integrates AI assistance throughout the creative process
- Designed for deep thinking, planning, and idea development
- User-friendly interface that fosters creativity and organization
- Suitable for a wide range of creative and strategic workflows
Cons
- Relatively new with limited integrations or community support
- Learning curve for users unfamiliar with markdown or spatial thinking
- Pricing details are not explicitly provided, potentially affecting accessibility
Best for
- • Brainstorming and mind-mapping complex ideas
- • Outlining and drafting articles or reports
- • Strategic planning and project architecture
- • Creative writing and story development
Pricing: Likely operates on a freemium model, offering a free tier with optional paid plans that unlock additional features or storage. Exact pricing details are not specified, so users may want to explore the platform for more information.
Work your tasks. Bill your clients with confidence.
TimeOS 2.0 is a seamless productivity and invoicing solution built directly into Notion, designed for freelancers, consultants, and small teams who want to streamline their workflow and billing process. By integrating time tracking with a dedicated invoicing companion app, users can log work sessions effortlessly and generate professional invoices with just a few clicks. The recent 2.0 update enhances this experience by allowing users to load their tracked sessions, generate PDF invoices, and customize them before sending clients. Its tight integration within Notion makes it an attractive choice for those already immersed in the Notion ecosystem, offering a unified platform for task management, time tracking, and billing. What makes TimeOS 2.0 particularly unique is its ability to close the loop—from tracking hours to invoicing—eliminating the need for multiple tools and reducing administrative overhead, all within a familiar workspace.
Pros
- Deep integration with Notion for seamless workflow management
- Simple process to convert tracked hours into professional invoices
- Customizable invoice templates for branding and client needs
- One-click PDF generation and easy client sharing
- Ideal for freelancers and small teams seeking all-in-one productivity and billing
Cons
- Limited information on pricing structure; likely subscription-based
- May require some initial setup and familiarity with Notion
- Could lack advanced invoicing features found in dedicated billing software
Best for
- • Freelancers tracking billable hours for multiple clients
- • Consultants managing project-based work and invoicing
- • Small creative agencies handling client work within Notion
- • Solo entrepreneurs needing integrated task management and billing
Pricing: Likely follows a freemium model with basic features free and premium options available; exact pricing details are not specified but expected to be subscription-based, possibly starting around $10-$20 per month.