Choose Dia if you want optional AI assistance and work-tool context built into your Mac browser; choose Arc if its Spaces, Profiles, Split View, and themes are central to how you organize work. There is also a consequential maintenance distinction: Arc’s current official page says it receives Chromium updates only and points readers to Dia for active security patches. Check that notice and the current plans before deciding, because browser features and terms change.
Dia vs. Arc at a glance
| What matters | Dia | Arc |
|---|---|---|
| Organization | Profiles and tab groups; its Mac changelog documents updates to tab management and synced settings. | Spaces and Profiles, plus Split View and themes. |
| AI and work context | Free browser tier has no AI. Paid tiers add page Q&A, context across tools, and, at the higher tier, briefings and work outputs. | The current Arc product page emphasizes organization. The available official source does not establish a complete current Arc AI feature inventory. |
| Maintenance | The company says it prioritizes Chromium updates and hotfixes. | The official product page says Arc receives Chromium updates only and recommends Dia for active security patches. |
| Price listed by the company | Free browser tier; Better Answers $20/month; Better Days $100/month. | The opened official page offers a Mac download but does not state a paid-plan price. |
| Migration | The changelog documents an Arc importer and says custom names on Arc pinned tabs or favorites are preserved. It does not promise a complete transfer. | — |
These details come from The Browser Company’s Dia plans page, Dia Mac updates, and Arc product page. They describe vendor-stated features and terms, not independent performance tests.
Choose based on how you organize browsing
Dia: profiles, groups, and assistant-oriented context
Dia combines familiar browser organization—profiles and tab groups—with optional AI features and integrations involving work tools. Its changelog describes releases touching Slack, Gmail, Notion, GitHub, Confluence, and Calendar, among others. Availability depends on the feature and account setup, so do not assume every integration works for every user or plan.
Arc: spaces and a deliberately spatial workspace
Arc’s official page highlights Spaces and Profiles for separating work, study, and personal browsing, along with Split View and themes. If you already rely on distinct Spaces and side-by-side pages, that established organization model may outweigh Dia’s assistant features. The comparison here is about the currently documented workflows; it is not a claim that Arc lacks every AI capability.
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
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What Dia’s AI plans include—and what they cost
The Browser Company’s plans page lists these prices and features at the time checked, October 4, 2026. They are vendor terms that can change; the page excerpt does not establish regional currency or tax treatment.
| Plan | Listed price | Listed features |
|---|---|---|
| Better Browser | Free | No AI features; includes profiles and tab groups. |
| Better Answers | $20/month | Page Q&A and context across tools. |
| Better Days | $100/month | Six times the tasks and chats of Better Answers, plus briefings and work outputs. |
The plans page also lists a 14-day new-user trial with Better Days access and no credit card required. Confirm the current checkout terms before subscribing. Arc’s download availability should not be treated as proof of a particular price or plan; the cited Arc page does not state one.
Rank #2
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- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
Understand Dia’s AI data flow before using it
Dia’s security page says conversations, history, bookmarks, and files are encrypted and stored locally by default. When you invoke an AI feature, the prompt and relevant context needed to fulfill the request are sent through Dia’s servers to AI partners. Dia says contracts restrict those partners from retaining or training on the data. This is the company’s description of its practices, not an independent audit of each AI request or partner.
The same page says Dia encrypts data at rest and in transit, restricts production access by role, and logs and reviews access. For the company’s security and data-handling claims, see Dia’s security page. Arc’s official product page says the company does not know which sites users visit or search for; that marketing statement is not a detailed privacy-policy comparison with Dia.
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Rank #3
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- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Dia’s work page says the company completed a SOC 2 Type II examination for Dia covering security, confidentiality, and privacy for calendar year 2025, with a final report issued in 2026. It also describes SSO, MDM, and controls for disabling AI on specific websites. The report itself has not been reviewed here; organizations should request it and evaluate its scope and exceptions against their own requirements. See Dia for Work.
One feature caveat matters for readers comparing older descriptions: Dia’s September 17, 2026 Mac update says the company is phasing out Memory and deleting existing memory data. Do not assume older descriptions of Memory reflect the current product; check the dated changelog.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Arc’s Chromium-update notice is a real decision factor
Arc’s official page states: “FYI: Arc receives Chromium updates only. For active security patches and enterprise-grade protection, download Dia instead.” Dia, in turn, says it prioritizes upstream Chromium releases and hotfixes. These are vendor statements, and the Arc notice may change; check the live pages before making a security-sensitive choice. Dia’s security page explains the company’s stated update approach at diabrowser.com/security, while Arc’s notice appears at arc.net.
For a managed work Mac, an employer’s approved-browser policy and patch requirements should take priority over interface preference. Dia’s enterprise materials describe controls, but organizations should review the SOC 2 report and confirm that the product’s current configuration meets their requirements.
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- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Switching from Arc to Dia: what is and is not established
Dia documents an Arc-to-Dia importer. Its Mac changelog specifically says custom names on Arc pinned tabs or favorites are preserved, but it does not guarantee that all browser state migrates. Treat the importer as a starting point, not proof of a complete one-to-one move.
- Before switching, identify the Arc data you depend on: bookmarks, pinned tabs, custom names, Spaces, settings, and extensions.
- Check which of those items Dia’s importer currently supports; the documented preservation of custom names does not establish support for every item on this list.
- After importing, verify important pages, saved items, and extensions in Dia before making it your only browser.
Dia’s dated importer notes and feature changes are listed in the Mac product updates.
Which browser fits your workflow?
- Evaluate Dia if built-in AI, work-tool context, and its stated enterprise controls are useful enough to justify reviewing the AI data flow and, if needed, a paid plan.
- Keep or choose Arc if Spaces, Profiles, Split View, or themes are the deciding parts of your workflow—and you have assessed its Chromium-updates-only notice against your security needs.
- Test before migrating if you rely on a customized Arc setup. The documented importer preserves one specific kind of tab naming; it does not promise complete state transfer.
Dia’s current direction is more explicitly centered on AI-assisted work and SaaS context, while Arc’s cited product page foregrounds workspace organization. Atlassian announced an agreement to acquire The Browser Company on September 4, 2025, describing a plan to make Dia a browser optimized for SaaS apps and knowledge work. That announcement is not evidence that every planned feature shipped or, by itself, confirmation of the transaction’s closing status. See Atlassian’s announcement.
Quick Recap
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