2-b.ai vs TimeOS 2.0: Bill your hours in Notion.
Side-by-side comparison of features, pros & cons, pricing, and community votes (2026).
🏆 2-b.ai leads with 432 upvotes

Todoist meets ChatGPT inside your browser
2-b.ai seamlessly blends task management with artificial intelligence directly within your browser, offering a unique productivity assistant for busy professionals and students alike. By combining the familiar structure of a task manager like Todoist with the intelligent capabilities of ChatGPT, it allows users to capture, organize, and execute tasks more efficiently. Its standout feature, Highlight-to-Capture, enables users to convert any highlighted text from any tab into actionable tasks effortlessly. Additionally, AI Planning helps break down complex goals into manageable steps, while the Chat to Execute feature provides real-time assistance to complete tasks. This integration of AI and task management makes 2-b.ai an innovative tool for streamlining workflows and boosting productivity.
Pros
- Integrates task management with AI for enhanced productivity
- Easy to capture tasks directly from any webpage via highlighting
- AI-powered goal breakdown and task planning
- User-friendly Chrome extension interface
- Supports real-time AI assistance for task execution
Cons
- Limited information on pricing structure and plans
- Potential learning curve for new users unfamiliar with AI tools
- Dependence on browser extension may impact performance
Best for
- • Capturing and converting web content into actionable tasks
- • Breaking down complex projects into smaller steps
- • Getting AI assistance to draft emails, reports, or code
- • Managing daily to-do lists with AI-enhanced prioritization
Pricing: Likely operates on a freemium model, offering basic features for free with optional paid plans for advanced capabilities and integrations. Exact pricing details are not specified but are typical for browser extension SaaS tools.

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.