Tool profile
Dia: cost, fit and limits
Dia is a web browser made by The Browser Company for macOS and Windows that answers questions using context across open tabs and connected tools such as Slack, Notion, Teams and Google Workspace, and builds synthesis reports from them.
What to know first
Dia is free to download. Its pitch is a browser that works as an assistant: Ask Dia queries tabs and linked apps, Morning Brief gathers calendar, inbox and key links before the workday, and synthesis reports pull from Slack, Notion and Teams. A Dia Pro tier is named in the privacy policy without a price, so the paid boundary is unknown from the pages we read.
Dia at a glance
| Maker | The Browser Company, Not stated on the vendor pages |
|---|---|
| Free plan | Yes |
| Entry price | Free download |
| API access | No |
| Category | Best AI Web Browsers in 2026, rank 5 of 11 |
| Website | diabrowser.com |
Who Dia is best for
Slack and Notion heavy teams
Synthesis reports and cross-app questions draw on Slack, Notion and Teams, which saves switching between workspaces to assemble a status summary.
People who start the day in a browser
Morning Brief lays out the calendar, inbox and key links before work starts, giving a daily snapshot without opening each tool.
Mac and Windows users
The homepage names macOS and Windows, so desktop users on either system can install it. The homepage names macOS and Windows, so desktop users on either system can install it, though no mobile or Linux version is named.
Dia plans and pricing
| Plan | Price | What it includes |
|---|---|---|
| Dia | Free | Browser for macOS and Windows. The homepage says to download Dia for free, and it covers the AI features read for this entry on both systems. |
| Dia Pro | Price not stated on the pages read | Paid features named in the privacy policy. The privacy policy names paid features and Dia Pro, but the pages read did not list what each includes. |
Checked November 2026.
What Dia does
- Ask Dia across tabs
- Questions can draw on several open tabs and on connected apps such as Google Workspace and Teams, so the answer reflects more than the page in front of you.
- Morning Brief
- A daily brief lays out calendar, inbox and key links before the workday, built from the apps you have connected to the browser, so it grows as you add more.
- Synthesis reports
- Reports are built from content in Slack, Notion and Teams, so a summary of a project can span chat threads and documents instead of a single page or tab.
- Platform coverage
- The homepage names macOS and Windows as the available platforms and no others, which limits who can install it and rules out Linux and mobile for now.
How Dia handles your data
Dia's privacy policy, effective 9 April 2026 and only partly read for this entry, says the company collects account data, content and feature usage data, and that payment for paid features is processed by Stripe. Retention periods, model-training use, hosting region and certifications were not stated on the pages read. Because Dia connects to Slack, Notion, Teams and Google Workspace, its reach extends to work content, so review the full policy and your employer's rules before linking those accounts.
Where Dia falls short in practice
- Only two platforms. The homepage names macOS and Windows only, so Linux, iOS and Android users have no named option and teams with mixed devices cannot standardize on it.
- Depends on connected apps. Answers are only as complete as the apps linked, and the connection itself gives the browser access to work content, which security reviewers will want to examine.
- Unread data terms. Retention and training terms were not found on the policy pages read, so confidential material needs a closer look at the full policy before it is shared.
Works with
Alternatives to Dia
Dia: common questions
Which apps can Dia connect to?
The homepage names Slack, Notion, Microsoft Teams and Google Workspace (GSuite). Dia uses them to answer questions across tabs and connected tools, and to build synthesis reports. The pages read did not list further integrations, so check the product pages for any others you depend on.
Is Dia free?
The homepage invites you to download Dia for free. A Dia Pro tier is named in the privacy policy, but its price and feature list were not on the pages read. Expect the free version to be enough to test the assistant, then confirm what Pro adds before paying.
What does Dia Morning Brief do?
Morning Brief lays out your calendar, inbox and key links before the workday begins, per the homepage. It depends on the apps you connect, so an empty connection list gives a thinner brief. It is a daily overview rather than a task agent.
Does Dia run on Linux or phones?
The homepage names macOS and Windows and no other platform. If you need Linux, iOS or Android, the pages read give no sign that Dia supports them. Check the vendor site again before planning a rollout beyond desktop. Ask the vendor about plans for other systems.
What data does Dia collect?
The privacy policy, effective 9 April 2026 and partly read, says Dia collects account, content and feature usage data, and that Stripe processes payment for paid features. Retention and model-training terms were not stated on the pages read, so review the full policy before connecting work accounts.