The Dia Insider’s Guide
Everything we know about Dia in one document: what it costs, its grades, getting a refund, getting help and what else to look at. Read it here, or keep a copy.
Dia
The Insider’s Guide
AI browser for work that answers questions across tabs and tools
Every plan, grade, refund rule and rival among browsers, read from Dia’s own pages.
Made by The Browser Company of New York · checked Oct 9, 2026 · toolgpa.com
Contents
- 01WelcomeWhat it is, who it suits, its grades and the ten things to know first
- 02What it costsEvery plan, the free plan, ways to pay less and how prices have moved
- 03What it doesIts main features, where it runs, what it works with and who makes it
- 04Where it standsIts grades against its category, and whether to keep it or make your own
- 05The alternativesThe tools it is most often weighed against, side by side
- 06Quick answersThe questions people ask about it, each answered in a line or two
- 07About ToolGPAWho made this guide, what else is on the site, and how to cite it
ToolGPA put this guide together from Dia’s own pages, its app-store listings and our grades. Every fact in it is on Dia’s page too, where it is kept up to date. Checked Oct 9, 2026.
Part 01 · Overview
Welcome
What it is, who it suits, its grades and the ten things to know first
2.0
GPA, above 0 of the 15 other browsers we grade
Dia is an AI browser for macOS and Windows from The Browser Company of New York, the makers of Arc. Its free plan is a browser with profiles, tab groups, split view and a built-in ad and tracking blocker but no AI features. Paid plans add a chat assistant that draws on open tabs and connected tools such as Slack, Notion and Google Calendar, a daily Morning Brief, and generated reports and slide decks.
To get you started, here are 9 things to know about Dia, taken from its own pages and our grades.
The free version is a browser with no AI at all.
- 1
Best for an AI browser that reads across your work tools
Dia is the Arc team's AI browser: ask it something and it answers from your tabs and your Slack, Notion and Google Workspace.
- 2
Paid plans start at $10 a month
As its pricing page puts it: $10 per month (Better Answers).
- 3
There is a free plan
Better Browser: the browser with profiles and tab groups, split view, picture-in-picture video, a built-in ad and tracking blocker and cross-device sync, but no AI features.
- 4
It runs on 2 platforms
macOS and Windows.
- 5
Chat with context from tabs and tools
On paid plans, a question asked on any page is answered using open tabs and connected tools such as Slack, Notion, Google Workspace and Microsoft Teams.
- 6
Morning Brief
A daily brief lays out the calendar, inbox and key links before the workday starts. It is part of the Better Days plan.
- 7
Reports, decks and recaps
Dia gathers context scattered across tools into a shareable report or a slide deck with headers and layout. These are part of the Better Days plan.
- 8
A 2.0 GPA, above 0 of 15
That is against the other browsers we grade, on value, the free plan, features, ease of use and platforms.
- 9
Keep it
To replace Dia you would be making a web browser. That is not a weekend's work, with an AI app builder or without one.
Dia at a glance
- Pricing
- Free plan, from $10 per month (Better Answers)
- Free plan
- Yes
- Free trial
- 14-day free trial of the Better Days plan for new users, no credit card required
- Runs on
- macOS, Windows
- Made by
- The Browser Company of New York
- Category
- Browsers
- Our grade
- 2.0 GPA, fair
The report card
Best for an AI browser that reads across your work tools
Dia is the Arc team's AI browser: ask it something and it answers from your tabs and your Slack, Notion and Google Workspace. The free version is a browser with no AI at all. Chat is $10 a month on the plan card while the FAQ on the same page says $20, the Morning Brief and reports need Better Days at $100, AI pauses when your Tasks run out, and it's Mac and Windows only, with paid plans not yet on Windows.
| Subject | Grade | Comment |
|---|---|---|
| Value for money | D | The Better Answers card says $10 a month, the top of what browsers charge, and the FAQ on the same page still says $20, so even Dia isn't sure. Worse, the parts people come for, the Morning Brief, the reports, the decks, need Better Days at $100 a month against a category middle of $8.33. |
| Free plan and trial | C | Better Browser is free, with profiles, tab groups, split view, picture-in-picture, ad and tracker blocking and sync. It also has no AI whatsoever, which is the only reason anyone picks Dia, so that's a wall on day one. The 14-day card-free trial is the honest look. |
| Features | B | It covers the browser job, and the AI chats on any page drawing on your open tabs and your Slack, Notion and Google Workspace, preps meetings with the agenda opened for you, and assembles reports and decks from it all. Paid plans don't reach Windows yet, though. |
| Ease of use | C | No rating on record. Tab groups get named for you and split-view layouts are remembered, but the AI is only worth anything once you've connected Slack, Notion, Google Workspace and Teams, and then there's the Tasks meter to keep an eye on. |
| Platforms and integrations | C | Desktop and nothing else: macOS and Windows, no Linux, no phone app of any kind. It connects to Slack, Notion, Gmail, Calendar, Outlook, Teams, GitHub and Figma, but the paid plans aren't live on Windows yet. |
An A is worth 4 points, a B 3, a C 2, a D 1 and an F nothing. The GPA is the average of the five.
Who Dia is for
- Fits if your working day is spread over Slack, Notion, Google Workspace and Teams
- Works for people who want a daily brief and meeting notes pulled up before each call
Who it is not for
- Skip it if you want AI for free, as the free plan is the browser alone and chat starts on the paid plans
- Pricey if you want the Morning Brief and reports, which need Better Days at $100 a month
- Not for you if you browse on a phone or Linux, and on Windows the paid plans aren't live yet
- Watch out: the plan card says $10 a month for Better Answers while the FAQ on the same page says $20
- Tight if you use the AI a lot, since it pauses when your Tasks run out unless you buy $20 credit blocks
Good to know
Good for
- Mac and Windows users whose work is spread across Slack, Notion, Google Workspace and Teams
- People who want a daily brief and meeting prep prepared for them
- Arc users moving to the company's newer browser
Worth knowing
- The free Better Browser plan has no AI features; chat needs Better Answers at $10 per month, and the Morning Brief and reports need Better Days at $100.
- Paid usage is metered in Tasks. When the monthly allowance runs out, AI features pause unless extra usage is bought in $20 credit blocks.
- Dia is offered for macOS and Windows only. Paid plans began with new Mac users on August 17, and the FAQ says they do not yet apply on Windows.
- The plans page disagrees with itself: the Better Answers card shows $10 a month, while the FAQ further down the page still says $20.
Part 02 · Pricing
What it costs
Every plan, the free plan, ways to pay less and how prices have moved
$10
A month to start. There is a free plan too
Dia has a free plan. Paid plans start at $10 per month (Better Answers).
Better Browser is free, with profiles, tab groups, split view, picture-in-picture, ad and tracker blocking and sync.
Better Browser
$0
The browser with no AI features: profiles and tab groups, split view, picture-in-picture video, ad and tracking blocking and cross-device sync.
Better Answers
$10
per month on the plan card; the page's FAQ still says $20
Adds chat on any page with context from tabs and connected tools, within a monthly usage allowance measured in Tasks.
Better Days
$100
per month
6x the usage of Better Answers, plus the daily Morning Brief, meeting prep and follow-up, and generated reports, decks and recaps.
The free plan
Better Browser: the browser with profiles and tab groups, split view, picture-in-picture video, a built-in ad and tracking blocker and cross-device sync, but no AI features.
Trying it first
14-day free trial of the Better Days plan for new users, no credit card required
Read from diabrowser.com on Oct 9, 2026.
How its prices have moved
- Oct 9, 2026Better Answers: $20 per month → $10 per monthThe archive copy of Dia's plans page from September 11, 2026 shows the Better Answers card at $20 a month. The card read on October 9, from India and from the United States, shows $10, while the FAQ lower on the same page still says $20.
Part 03 · Features
What it does
Its main features, where it runs, what it works with and who makes it
2
Places it runs: macOS and Windows
AI browser for work that answers questions across tabs and tools. Here is what it does, as its own site describes it, and what it covers: end-to-end encrypted, AI features, chat assistant, web browser.
Paid plans don't reach Windows yet, though.
- Chat with context from tabs and tools
- On paid plans, a question asked on any page is answered using open tabs and connected tools such as Slack, Notion, Google Workspace and Microsoft Teams.
- Morning Brief
- A daily brief lays out the calendar, inbox and key links before the workday starts. It is part of the Better Days plan.
- Reports, decks and recaps
- Dia gathers context scattered across tools into a shareable report or a slide deck with headers and layout. These are part of the Better Days plan.
- Meeting prep
- Before a call, Dia opens the meeting page, agenda, notes and related documents and shows a countdown to the start time.
- Profiles, tab groups and split view
- Profiles keep work, freelance and personal tabs, logins and AI separate. Related tabs are grouped under descriptive names, and split view layouts are remembered.
- Privacy controls
- Ad and tracker blocking are built in, memory and chat personalization can be switched off, and synced data is end-to-end encrypted. Dia for Work adds SSO and admin tools.
Where it runs
- macOS
- Windows
What it works with
- Slack
- Notion
- Gmail
- Google Calendar
- Microsoft Outlook
- Microsoft Teams
- GitHub
- Figma
Dia is made by The Browser Company of New York.
Part 04 · Standing
Where it stands
Its grades against its category, and whether to keep it or make your own
0/15
Other browsers it is graded above
Dia's GPA of 2.0 is higher than 0 of the 15 other browsers we grade, and level with 1.
It stands best on features (B, above 7 of 15) and worst on value for money (D, above 0).
Its paid plans start at $10 a month, against a middle price of $7.08 for the category: 6 of the 7 others that charge start lower.
On features, ease of use and platforms it scores 2.3 out of 4. 9 tools score higher and cost less.
Each grade against the category
Every bar is all 16 browsers we grade, cut by the letter each got. Dia’s own letter is outlined.
- DValue for moneyAbove 0 of 15
- CFree plan and trialAbove 0 of 15
- BFeaturesAbove 7 of 15
- CEase of useAbove 0 of 15
- CPlatforms and integrationsAbove 0 of 15
Price against what you get
Each dot is one of 15 browsers. Further left costs less; higher up scores better on features, ease of use and platforms. Dia is the marked dot.
What paid plans start at, a month (each step along is roughly double) →
Keep it, or make your own?
Whether this is something you could build for yourself with an AI app builder, and what you would give up.
Keep it
To replace Dia you would be making a web browser. That is not a weekend's work, with an AI app builder or without one.
That makes this kind of software worth paying for, not this one in particular: 14 of the 15 other browsers grade higher. It costs $120 a year.
What you could not
- A web browser.
- An AI model, which you can rent by the request but not make.
- A real app for macOS and Windows. Something home-made would be a web page.
- It plugs into other products, Slack, Notion and Gmail among them.
- End-to-end encryption done properly.
- What a company asks for before it lets staff use something: single sign-on.
- The depth: we grade its features B, which means it covers the whole job.
What this rests on. Dia’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
Part 05 · Alternatives
The alternatives
The tools it is most often weighed against, side by side
Comet, Arc, Google Chrome, Microsoft Edge and Opera
The 5 tools Dia is most often weighed against, with where each one differs from it.
- 2.6GPA
Comet
Free plan · from $20.00
Perplexity's AI browser with an assistant that acts across tabs.
- Only Comet lists iOS and Android apps.
- Dia is end-to-end encrypted, according to its own site.
- Comet also covers AI search and AI agents.
- 3.4GPA
Arc
Free
Chromium-based browser with Spaces, Profiles and Split View.
- Only Arc lists iOS and Android apps.
- Dia is end-to-end encrypted, according to its own site.
- Dia also covers chat assistant.
- 3.6GPA
Google Chrome
Free
Google's free browser for desktop and mobile, with Gemini built in.
- Only Google Chrome lists Linux, iOS and Android apps.
- Dia is end-to-end encrypted, according to its own site.
- Dia also covers chat assistant.
- 3.6GPA
Microsoft Edge
Free
Microsoft's browser with the Copilot assistant built in.
- Only Microsoft Edge lists Linux, iOS and Android apps.
- Dia is end-to-end encrypted, according to its own site.
- Dia also covers chat assistant.
- 3.6GPA
Opera
Free plan · from $4/mo
Browser with a built-in ad blocker, free VPN and sidebar messengers.
- Only Opera lists Linux, Android and iOS apps.
- Dia is end-to-end encrypted, according to its own site.
- Dia also covers chat assistant.
Part 06 · Questions
Quick answers
The questions people ask about it, each answered in a line or two
14
Questions, each answered in a line or two
The short version of everything above, for when you only need the answer. Each one is told in full in its part of the guide.
Is Dia free?
Dia has a free plan. Better Browser: the browser with profiles and tab groups, split view, picture-in-picture video, a built-in ad and tracking blocker and cross-device sync, but no AI features.
How much does Dia cost?
Dia lists 3 plans. Better Browser: $0.
What platforms does Dia work on?
Dia is available on macOS and Windows.
Does Dia have an Android app?
No Android app was listed when its pages were read on Oct 9, 2026. Dia is listed for macOS and Windows.
Does Dia have an iPhone app?
No iPhone app was listed when its pages were read on Oct 9, 2026. Dia is listed for macOS and Windows.
Is Dia open source?
Dia is not described as open source on its own site, as read on Oct 9, 2026.
Is Dia end-to-end encrypted?
Dia describes itself as end-to-end encrypted on its own site. Nobody here has audited that.
What does Dia integrate with?
Dia's listing names Slack, Notion, Gmail, Google Calendar, Microsoft Outlook, Microsoft Teams, GitHub and Figma.
Does Dia have a free trial?
Yes. 14-day free trial of the Better Days plan for new users, no credit card required.
Who makes Dia?
Dia is made by The Browser Company of New York.
What are the alternatives to Dia?
The closest alternatives to Dia in our directory are Comet, Arc, Google Chrome, Microsoft Edge and Opera.
How does Dia compare with other browsers?
Dia's GPA of 2.0 is higher than 0 of the 15 other browsers we grade, and level with 1.
Is Dia good value for money?
ToolGPA grades Dia D for value for money. Its paid plans start at $10 a month, against a middle price of $7.08 for the category: 6 of the 7 others that charge start lower.
Could I make my own version of Dia?
To replace Dia you would be making a web browser. That is not a weekend's work, with an AI app builder or without one.
Where this guide comes from
The prices, plans, platforms and features were read from Dia’s own pages on Oct 9, 2026, and the grades were given on Oct 10, 2026. Graded from this listing, whose facts were read from Dia's own pages on 9 October 2026. Also tested with a demo account on 2026-07-29.
Every tool we list gets five grades, A to F, each with its reason, and a GPA that averages them. How each is decided is at toolgpa.com/grades. This guide is ToolGPA’s own work; it is not made, paid for or approved by The Browser Company of New York. Prices change, so check diabrowser.com before you buy.
Part 07 · About
About ToolGPA
Who made this guide, what else is on the site, and how to cite it
3,189
Tools graded, in 94 categories
ToolGPA grades software the way a school report grades a pupil: five subjects, a letter for each with the reason written beside it, and a GPA that averages them. Prices, plans and platforms are read from each maker’s own pages and dated, so you always know how fresh a figure is.
Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Every tool on the site has a guide like this one, free to download and pass on. It all lives at toolgpa.com.
3,189
tools graded
94
categories
426
price changes on record
579
apps priced in 12 countries
What else is on toolgpa.com
- Dia, kept up to dateEverything in this guide, with prices and grades as they are todaytoolgpa.com/tools/dia
- How grades are givenThe rules behind every letter and every GPAtoolgpa.com/grades
- Value chartsWhat each tool costs against what it scores, for every categorytoolgpa.com/charts
- CompareAny two tools side by side, plan by plantoolgpa.com/compare
- Price changesEvery price rise and cut on record, each with its sourcetoolgpa.com/price-changes
- Prices by countryWhat apps cost on the App Store in 12 countriestoolgpa.com/prices-by-country
- Pay lessEvery public discount: yearly billing, students, nonprofitstoolgpa.com/save
- Keep or makeWhich tools are worth paying for, and which you could build yourselftoolgpa.com/keep-or-make
Scan for the live page
Prices and grades as they are today
Quoting this guide?
Please name ToolGPA and link to the live page, so readers can check the figures for themselves:
ToolGPA, "Dia: The Insider's Guide", checked Oct 9, 2026. https://toolgpa.com/tools/dia
Know someone choosing between browsers?
Send them this guide: toolgpa.com/tools/dia/guide
ToolGPA elsewhere: youtube.com/@toolgpa
See our other guides
The best-graded browsers after Dia, each with an Insider's Guide of its own.
- Browsers Insider's GuideEvery one of the 16 browsers we grade, compared
- Brave Insider's GuideOpen-source browser that blocks ads and trackers by default3.8 GPA
- Firefox Insider's GuideFree, open-source browser from Mozilla with tracker blocking built in3.8 GPA
- Vivaldi Insider's GuideCustomizable browser with built-in mail, calendar and feed reader3.8 GPA
Choosing software? Every tool graded, every price dated.
Compare tools at toolgpa.com ›Everything in this guide is ToolGPA’s own summary of what Dia’s pages, its app-store listings and public reviews said on the dates shown. Grades are our judgement under the rules at toolgpa.com/grades. Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Dia is a trademark of its owner, and this guide is not made, paid for or approved by The Browser Company of New York. Prices and plans change: check diabrowser.com before you buy.