Stop Losing Time.
Start Prioritizing Revenue-Driving Work.

NotaBeen Professional: The Open Core AI Engine for Intelligent Prioritization and Risk Mitigation. Ensure you never miss a high-stakes client request or invoice, without compromising on data security.

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“I built NotaBeen because the true cost of email isn’t time, it’s risk. It is for every professional who needs an auditable defense against missing critical client work, contracts, or invoices, and who demands a full return on their focus.”

— Curtis Thomas, Founder of NotaBeen


Built for the Independent Professional Who Needs Intelligent Prioritization.

NotaBeen is for those whose time is their revenue. Stop wasting valuable hours sifting through clutter. Leverage our AI to immediately focus on the high-impact work that directly drives your bottom line.

NotaBeen Professional: Your Engine for Intelligent Focus

Intelligent Prioritization: Risk Mitigation

Our solution automatically detect and surface high-stakes emails, invoices, contract deadlines, and client requests. Ensuring you never drop the ball on revenue-driving or high-risk communication.

High-Value AI Actions & ROI

Every Professional account includes unlimited AI Actions (summaries, categorization, sentiment analysis) per month. These are the tools that save you hours, driving a clear and measurable return on your investment.

Transparency & Trust: Open Core

Unlike proprietary AI "black boxes," our Open Core model lets you audit our codebase. Choose the managed service for convenience, or the self-hosted Core for 100% data sovereignty.

The Open Core Advantage: Auditable Trust, Proven Security.

We don't just ask for your trust; we prove it. Our Open Core model combines the convenience of a premium SaaS with the assurance of a fully auditable, MIT-licensed codebase. This is how we eliminate the "black box" risk of modern AI tools.

Smart AI, Uncompromised Privacy

Your data is processed only for prioritization. Whether you use the NotaBeen Professional managed service or the self-hosted Core, your information is never used to train models, nor is it sold to third parties.

Two Paths: Convenience or Sovereignty

NotaBeen Professional offers a powerful, maintenance-free hosted experience. NotaBeen Core is free to download and self-host, giving you absolute control over your infrastructure and ensuring maximum data sovereignty for technical users.

The Full Professional Stack: Focus, Mitigation, and Control.

NotaBeen Professional is engineered for the highest return on investment for high-value time. We deliver an indispensable platform built on three core, non-negotiable pillars of modern productivity.

Intelligent Risk Prioritization

Our AI doesn't just sort, it analyzes financial risk. By surfacing contracts, key client threads, and invoices first, we ensure you never lose revenue or reputation due to a missed email.

High-Value AI Action Efficiency

Every Professional account includes unlimited AI Actions per month. These are metered, high-value operations. Like full-thread summaries and automated reply drafts that directly save you billable hours.

Open Core Data Sovereignty

Trust is auditable. With our Open Core model, you get the convenience of a managed service but the security assurance of a transparent, MIT-licensed codebase. Your data remains yours, always.

A Future Where Your Focus Pays Dividends.

This isn't just a vision. This is the auditable ROI you can expect from running your professional life on NotaBeen.

Experience Auditable Calm

You'll feel calm and confident, knowing our intelligent prioritization system provides an auditable, enterprise-grade defense against missing critical, high-stakes client communication, contracts, or invoices.

Optimize Time as Revenue

You'll shift your focus entirely to billable, high-impact work. Every AI Action (summaries, categorization, drafting) saves you precious minutes, translating into a clear and measurable professional ROI.

Unlock High-Value Focus

The system's entire purpose is to maintain your flow state. Stop chasing the noise and spend your mental energy executing the strategic, revenue-generating tasks that truly matter to your business.

Frequently Asked Questions

NotaBeen Core is the free, MIT-licensed, self-hostable open-source engine, perfect for users who prioritize absolute data sovereignty. It handles basic categorization and a clean dashboard. NotaBeen Professional is our managed SaaS offering. It includes advanced Intelligent Prioritization (Risk Mitigation), automated reply drafting, and a generous allowance of AI Actions (our monetization metric, like summaries and analysis) without the burden of self-hosting.

Our Open Core model is our security moat. You can audit the entire codebase (Core) to verify our data handling practices. For the Professional managed service, your data is processed in a secure, private cloud environment and is never used to train AI models or sold to third parties. You always retain control and transparency.

AI Actions are our core monetization metric. They are defined as high-value, resource-intensive AI operations, such as generating an in-depth thread summary, performing sentiment analysis, or drafting an advanced reply. NotaBeen Professional includes unlimited AI Actions per month, offering a clear, measurable ROI by saving you time on high-stakes tasks.

The NotaBeen Professional hosted service is priced at €28.99 per user, per month. You can receive a discount by choosing the annual plan. The self-hosted NotaBeen Core is free (open-source), with the only cost being your private server hosting fees.

Want to See the Code?

All questions about security, data handling, and the core prioritization logic can be answered by reviewing our open-source repository.

View on GitHub (Open Core)

Invest in Your Focus. Guarantee Your Professional ROI.

Stop losing billable hours to email noise. Choose NotaBeen Professional for high-value AI Actions and risk mitigation, or use the self-hosted Open Core for auditable data sovereignty.

View on GitHub (Free Open Core)