SpecialistInfinite visual canvas for brainstorming and diagramming, but less structured for text documents and wikis.

Notion records 173,441,670 monthly visits with +0.1% month-over-month growth and Freemium pricing. Thinkstack.ai records 917 monthly visits with -47.4% growth and Freemium pricing.

Build custom AI chatbots and agents trained on your own data
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | notion.com | app.thinkstack.ai |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 173.44M (173,441,670) | 917 (917) |
| MoM Traffic Delta |
| +201.2K (+0.1%) |
| -828 (-47.4%) |
| Primary Market & Share | 🇺🇸 United States (18.4%) | 🇺🇸 United States (48.2%) |
|---|
| Direct Visits / mo | 135.18M | 367 |
|---|
| User Rating | 4.8 | 4.1 |
|---|
| Supported Platforms | Website | Website |
|---|

The AI workspace where teams and agents get work done together
Combine docs, wikis, projects, and databases into one structured system of record that stays linked as your content grows.
Draft, summarize, translate, and answer questions inline, or build custom agents that automate recurring workflows around the clock.
Find answers instantly across Notion and connected apps, with citations so you can verify where each answer came from.
Use relations, rollups, views, and a large template gallery to model anything from a CRM to a content calendar.

Build custom AI chatbots and agents trained on your own data
Create fully functional AI agents in seconds from a visual, no-code interface without engineering help.
Connect multiple data sources so the bot answers from your own documents, help content, and websites.
Automate customer actions and build autonomous systems that require minimal human oversight.
Move complex chats to live agents and collect structured data through chat-based forms.
SpecialistInfinite visual canvas for brainstorming and diagramming, but less structured for text documents and wikis.


SpecialistPowerful enterprise-wide search and knowledge discovery across apps, but lacks Notion's flexible doc creation.
#2Superior block-based typography and mobile note-taking experience, but fewer robust database and automation features.

SpecialistExcellent developer-focused documentation and Git synchronization, but lacks general database and task management.
Built-in AI agents and automated workflows, but less refined document editing interface.

AI customer service that answers instantly and turns chats into revenue

Custom AI agents trained on your documentation and knowledge base

SpecialistNetworked object-based knowledge management, but less suited for traditional folder hierarchies and task boards.

Stronger relational tables and formula capabilities, but less polished for simple document writing than Notion.

Powerful enterprise project portfolio management, but heavier interface than Notion's clean docs.

Advanced relational modeling and custom views, but steeper learning curve than Notion.

Custom AI support chatbots trained on your own website content
SpecialistInfinite visual canvas for brainstorming and diagramming, but less structured for text documents and wikis.
SpecialistPowerful enterprise-wide search and knowledge discovery across apps, but lacks Notion's flexible doc creation.
Superior block-based typography and mobile note-taking experience, but fewer robust database and automation features.
SpecialistExcellent developer-focused documentation and Git synchronization, but lacks general database and task management.
AI customer service that answers instantly and turns chats into revenue
Custom AI agents trained on your documentation and knowledge base
SpecialistNetworked object-based knowledge management, but less suited for traditional folder hierarchies and task boards.
Stronger relational tables and formula capabilities, but less polished for simple document writing than Notion.
Powerful enterprise project portfolio management, but heavier interface than Notion's clean docs.
Advanced relational modeling and custom views, but steeper learning curve than Notion.
Custom AI support chatbots trained on your own website content