Dia

Dia is a macOS web browser with an assistant for questions and requests about the current page, other tabs, selected text and browsing history. The free plan includes profiles, tab groups, split view, picture-in-picture, ad and tracking blocking, and cross-device sync, but no AI features. Better Answers costs $20/month and adds AI answers and contextual chats; Better Days costs $100/month and provides six times the usage of Better Answers along with additional work features. AI usage is measured in Tasks, resets each billing cycle and pauses at the limit unless more usage is added. Extra usage is available in $20 credit blocks, which can roll over for up to three months. Profiles can keep work, freelance and personal tabs, logins and AI contexts separate. Morning Brief brings together calendar, inbox and key links, while Skills save recurring prompts or requests for reuse. Listed connections include Slack, Gmail, Notion, Outlook, GitHub, Google Calendar and Figma. Dia says it does not sell personal data or use browsing data to build ad profiles, and that Sync is end-to-end encrypted.

Dia combines browser organization and syncing with paid AI features and work tools. Consider the free plan’s lack of AI and the monthly usage limits when choosing a plan.

Dia may suit macOS users who want browser organization and, on a paid plan, an AI assistant for browsing tasks. Its profiles can separate work, freelance and personal activity.

Dia is a macOS browser that combines conventional tab management and privacy controls with an assistant that understands your open web context. It is most suitable for Mac users who divide browsing among work, freelance, and personal roles and want AI help built into that workflow. The browser is useful without a subscription, but serious AI use depends on a paid allowance that stops when it runs out.

Overview

Dia comes from The Browser Company of New York and uses Chromium, so Chrome Store extensions are supported. Its free browser includes profiles, tab groups, split view, picture-in-picture, built-in ad blocking, advanced tracking protection, and end-to-end encrypted cross-device sync. That makes the no-cost tier a credible everyday browser rather than a limited preview. Dia is currently available for macOS; the website describes Windows as coming soon, so it is not a practical choice for a Windows-first setup today.

Privacy is a notable part of the proposition. Dia says it does not sell personal data or use browsing data to build ad profiles, and says its AI partners cannot retain user data or train models on it under contract. You can disable Dia's content-data sharing for product improvement in Settings, and control memory plus which connected tools can participate in your workflow. The Browser Company says Dia completed a SOC 2 Type II examination covering security, confidentiality, and privacy for calendar year 2025.

Key features

The assistant can answer questions and handle requests about the current page, other tabs, selected text, and browsing history. That context makes it more useful for summarizing or comparing material already open than a generic chat window, provided you have paid AI access. Profiles separate tabs, logins, and AI contexts for work, freelance, and personal use, reducing the risk of mixing identities and projects.

Morning Brief gathers calendar items, inbox information, and key links for daily preparation. Reusable Skills turn recurring prompts into repeatable workflows, which is more valuable for routine work than for occasional experimentation. The plans page names Slack, Gmail, Notion, Microsoft Outlook, GitHub, Google Calendar, and Figma integrations; release notes dated September 24, 2026 say Dia connects to Figma tools. Dia for Work adds SSO and administrative controls for team security, making the product more relevant to managed deployments than the individual tiers.

Pricing

Better Browser fits anyone who wants Dia's organization, blocking, extensions, and sync without AI. Better Answers is the sensible individual upgrade when contextual assistance is a regular need, but its monthly Task allowance means heavy users must monitor consumption. Better Days is aimed at people whose work justifies six times the usage and extra work tooling; at $100 per month, it is difficult to justify for light or occasional AI use.

Paid-plan allowances reset each billing cycle and do not carry over. AI features pause at the limit unless you buy more usage. Additional usage comes in $20 credit blocks through auto-reload or one-time top-ups; purchased blocks roll over until used for up to three months from purchase. Dia offers a 14-day trial, while the free plan has no AI features.

Platforms

Dia is available on macOS and uses the Chromium browser engine. Chrome Store extension support and cross-device sync strengthen its fit for people already working in Google's browser ecosystem. Windows support is described as coming soon rather than current.

Who it's for

Choose Dia if you are a Mac user who wants browser organization, privacy controls, and AI that can use the context of pages and tabs. It is particularly well suited to people switching between separate professional and personal identities, or to knowledge workers who can turn repeated requests into Skills and use Morning Brief. The free tier also suits users who want the browser features without AI. Look elsewhere if you need a currently supported Windows client, unlimited AI, or a low-cost plan for sustained heavy usage.

Pros and cons

• Pros: The free tier includes profiles, tab groups, split view, picture-in-picture, blocking, extensions, and encrypted sync, so it remains useful without payment.
• Pros: Page, tab, selection, and history context gives the assistant a focused browser-native role.
• Pros: Memory controls, tool permissions, data-use commitments, and stated SOC 2 Type II coverage address important privacy and security concerns.
• Cons: The free plan excludes all AI, so the headline assistant requires at least $20 per month after the trial.
• Cons: Task allowances reset monthly, do not roll over, and stop AI at the limit; extra usage adds unpredictable cost.
• Cons: macOS is the only current platform, with Windows still forthcoming.

Alternatives

Comet is a free browser for Android, iOS, macOS, and Windows, making it the better pick when broad device coverage matters more than Dia's paid AI tiers.

Norton Neo is free across Android, iOS, Linux, macOS, web, and Windows and includes unlimited AI, so it suits readers seeking no-cost AI and wider platform support.

Arc Search is a free browser on mobile and desktop platforms; choose it for a free, cross-platform browser when Dia's profiles and paid contextual AI are not priorities.

Fellou is another macOS freemium browser with task-based plans, worth considering if its scheduled-task model better matches your workflow.

Aside offers freemium plans on macOS and Windows, including routines and bring-your-own-subscription support, for users who want those platform and billing options.

BrowserOS is an open-source free browser with built-in AI agents for macOS, Windows, and Linux.

ego (lite) is a macOS freemium option with a free individual plan and a business tier with custom pricing.

Genspark AI Browser offers free on-device AI with no subscription or usage limits, plus paid team options, for readers prioritizing unrestricted local models.

You can also compare Dia with the AI Browsers and Web browsers lists.

Verdict

Dia is a strong choice for Mac users who want profiles, privacy-minded browsing, and an assistant that works across their active web context. Choose it for that integrated workflow and the useful free browser foundation. Look elsewhere if you need Windows now, unlimited AI, or predictable costs without monthly Task limits and add-on credits.