Productivity · Head-to-head
Notion AI vs Dia
Notion AI (paid, AI Score 9/10) vs Dia (freemium, AI Score 7.9/10). Side-by-side pricing, features, pros and cons, and which to pick.
The verdict
Pick Notion AI if…
- →overall capability matters more than price (AI Score 9 vs 7.9)
- →you want our editor's pick for this category
- →your primary use case is notion users who want an assistant that already knows their pages, databases, and documents for summaries and answers.
Pick Dia if…
- →you need a genuinely free option
- →budget is the constraint
- →your primary use case is mac users who want the browser to double as a work dashboard, pulling calendar, inbox and workspace tools into one place instead of another set of tabs.
- →you need: research
Side-by-side specs
| Spec | Notion AI | Dia |
|---|---|---|
| Category | Productivity | Productivity |
| Pricing model | paid | freemium |
| Headline pricing | From $10/mo | Free to download; a Dia Pro tier lifts chat limits |
| Free tier | — | Yes. Dia is free to download and the free tier includes AI chat, with a cap on chat usage that the Pro tier removes. |
| AI Score | 9/10 | 7.9/10 |
| Best for | Notion users who want an assistant that already knows their pages, databases, and documents for summaries and answers. | Mac users who want the browser to double as a work dashboard, pulling calendar, inbox and workspace tools into one place instead of another set of tabs. |
| Editor's pick | ✓ Yes | — |
| Use cases | productivity | productivity research |
| Date added | 2025-05-15 | 2026-08-02 |
Pros and cons
Notion AI
Productivity · paid
Pros
- ✓Deep integration with your existing Notion workspace
- ✓Contextual AI that understands your work
- ✓Excellent summarization and Q&A capabilities
- ✓Saves hours of manual knowledge management
Cons
- ×Requires Notion as your workspace (no standalone)
- ×Add-on pricing on top of Notion subscription
- ×AI responses limited to content in your workspace
- ×Can be slow with very large workspaces
🌐
Dia
Productivity · freemium
Pros
- ✓Pulls calendar, inbox, Slack and Notion context together instead of reasoning only about the tab in front of it
- ✓Decks and Reports produce something usable rather than stopping at a summary
- ✓Tab organisation, Profiles and Splits are genuinely good browser ergonomics, independent of the AI
- ✓Trackers and ads blocked by default, with SOC 2 coverage stated on the site
- ✓Free to download with AI chat included on the free tier
Cons
- ×macOS 14 or later on M1 or newer only, which excludes Intel Macs and every Windows machine
- ×Windows support is stated only as "coming this fall" with a beta waitlist and no firm date
- ×The site publishes no server-rendered pricing table, so the Dia Pro price cannot be checked without installing the browser
- ×Free-tier chat is capped, and the site does not state where the cap sits
- ×Deep workspace integration means granting a browser access to Slack, Notion, calendar and mail, which is a broad permission surface
Related comparisons
Updated 2026-08-02. Spec data sourced from official product pages and tracked in our public directory at /tools.