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# Dia Review (2026): Atlassian's AI Browser, Tested for Australia
- URL: https://www.theaidirectory.com.au/review-dia-browser-australia-2026/
- Published: 2026-08-31T23:00:00.000Z
- Updated: 2026-10-09T06:29:30.000Z
- Description: Dia is the AI browser from The Browser Company — now owned by Atlassian, the Australian-founded giant behind Jira. It is the calmest, least risky AI browser you can use today, and the one with the clearest business ambition. It is also Mac-only, priced in US dollars, and has just put its best featur
- Author: Adam
- Tags: AI Assistants & Chatbots, Dia, #review

**15**/25

★★★☆☆

Good

Dia · The Browser Company (Atlassian)

Verified 24 Sep 2026 Reviewed 1 Sep 2026 

Value for Money**3**/5

Ease of Use**4**/5

Feature Depth**3**/5

Australian Fit**2**/5

Reliability & Support**3**/5

From

**A$28**/mo · ex-GST · billed in USD (US$20)

**The gate:** Five stars need 21+ and Australian Fit of at least 4/5.

[Skip to the verdict ](#verdict) 

*Pricing figures updated 6 September 2026: USD prices are converted at the current rate (1 USD ≈ 1.40 AUD, verified 5 September 2026) and shown ex-GST, replacing the retired 1.55 + GST basis. A GST-registered Australian business that supplies its ABN is not charged GST on an imported digital service; other buyers should allow \~10% on top (*[*Methodology*](https://www.theaidirectory.com.au/methodology/)*).*

> **The verdict:** Dia is the AI browser from The Browser Company of New York — the team behind Arc — and since October 2025 it has been owned by Atlassian, the Australian-founded company behind Jira and Confluence. That ownership is the most interesting thing about it. Dia is the "browser for work": an AI that chats with your open tabs, pulls context from Slack, Gmail, Notion and your calendar, and on the top plan writes your morning brief, meeting prep and decks. It is also the safest-feeling AI browser we have tested, because it deliberately is not an agent — it will not click, buy or book on your behalf, which removes the prompt-injection horror stories that dog Comet and dogged ChatGPT Atlas until OpenAI discontinued it on 9 August 2026\. Three things hold it back for Australians. It only runs on Apple Silicon Macs, ruling out the Windows majority until a promised late-2026 Windows launch. An August 2026 pricing overhaul stripped AI out of the free plan for new users — chat now starts at US$20 a month, the headline features at US$100\. And beyond the Atlassian logo, nothing about it is Australian: no AUD pricing, no local data residency, no AU support. A polished, calm, genuinely useful research browser at a price that is hard to defend. Score: 15/25 — Good.

## What it is

Dia is **a Chromium-based web browser with an AI assistant built into its core**, made by **The Browser Company of New York** — the startup behind the much-loved Arc browser — which is now a subsidiary of **Atlassian** after a US$610 million all-cash acquisition agreed on 4 September 2025 \[[Source](https://www.cnbc.com/2025/09/04/atlassian-the-browser-company-deal.html?ref=theaidirectory.com.au)\] and completed on 21 October 2025 \[[Source](https://www.businesswire.com/news/home/20251021473486/en/Atlassian-Completes-Acquisition-of-The-Browser-Company-of-New-York?ref=theaidirectory.com.au)\].

Dia launched in invite-only beta on 11 June 2025 \[[Source](https://techcrunch.com/2025/06/11/the-browser-company-launches-its-ai-first-browser-dia-in-beta?ref=theaidirectory.com.au)\] and opened to the public on macOS in October 2025 \[[Source](https://9to5mac.com/2025/10/08/dia-the-browser-companys-ai-powered-browser-is-now-generally-available-on-macos/?ref=theaidirectory.com.au)\]. Today it is a free download for **Apple Silicon Macs running macOS 14 or later** — no invite, no waitlist \[[Source](https://www.diabrowser.com/?ref=theaidirectory.com.au)\]. That is a change since our June roundup, when we described it as invite-gated. A Windows version exists in closed beta behind a waitlist, and the company has pointed to a public Windows launch in the US autumn of 2026 — September to November, on Australian calendars \[[Source](https://www.digitaltrends.com/computing/after-a-long-wait-dia-browser-is-finally-coming-to-windows/?ref=theaidirectory.com.au)\].

The core idea is simple: instead of copying things into a chatbot, you ask the browser. Dia's assistant can see the page you are on — and every other tab you have open — and answer questions across all of them. On paid plans it reaches further, pulling context from Slack, Gmail, Outlook, Notion, GitHub, Google Calendar and Figma \[[Source](https://www.diabrowser.com/plans?ref=theaidirectory.com.au)\]. The top plan adds a daily Morning Brief from your calendar and inbox, meeting prep, and drafted reports, decks and recaps \[[Source](https://www.diabrowser.com/?ref=theaidirectory.com.au)\].

What Dia deliberately is **not** is an agent. It does not click buttons, fill forms, shop or book on your behalf the way Perplexity's [Comet](https://www.theaidirectory.com.au/review-comet-australia-2026/) does, or the way OpenAI's [ChatGPT Atlas](https://www.theaidirectory.com.au/review-chatgpt-atlas-australia-2026/) did before OpenAI discontinued it on 9 August 2026\. Atlassian is positioning it as a browser you can "bring to the office" — built, in its words, with trust and security in mind \[[Source](https://www.atlassian.com/blog/announcements/atlassian-acquires-the-browser-company?ref=theaidirectory.com.au)\]. One more piece of context: Arc, the browser that made this team's name, is no longer being actively developed — the company's attention is on Dia. Worth knowing before you move your working life into their new one.

## What it costs in Australia

Dia's pricing changed in August 2026, and the change is significant. When the first paid tier ("Dia Pro", US$20/month) launched on 6 August 2025, the free plan kept AI for anyone using it "a few times a week" \[[Source](https://techcrunch.com/2025/08/06/the-browser-company-launches-a-20-monthly-subscription-for-its-ai-powered-browser?ref=theaidirectory.com.au)\]. The current plans page tells a different story. For new Mac users — the rollout began on 17 August — the free plan now lists browser features only, with no AI at all. Chat starts on a paid plan \[[Source](https://www.diabrowser.com/plans?ref=theaidirectory.com.au)\].

| Plan                  | USD/mo | Approx AUD/mo (\~1.40, ex GST) | What you get                                                                                               |
| --------------------- | ------ | ------------------------------ | ---------------------------------------------------------------------------------------------------------- |
| Better Browser (free) | $0     | $0                             | Profiles, tab groups, split view, ad and tracker blocking, cross-device sync — no AI                       |
| Better Answers        | US$20  | \~A$28                         | AI chat on any page, context from connected tools (Slack, Gmail, Notion, Outlook, GitHub, Calendar, Figma) |
| Better Days           | US$100 | \~A$140                        | Everything above, 6× the usage, daily Morning Brief, meeting prep and follow-up, reports, decks and recaps |

All prices from the official plans page, checked 1 September 2026 \[[Source](https://www.diabrowser.com/plans?ref=theaidirectory.com.au)\]. The Australian notes:

- **There is no AUD price.** Dia bills in US dollars. Our AUD figures are conversions at roughly 1.40 and exclude GST. The plans page says nothing about tax treatment for Australian customers — Atlassian's other products charge GST here, but Dia's checkout treatment is not published, so check the final figure at checkout. If GST is added, Better Answers lands around A$28 a month and Better Days around A$171.
- **Usage is metered in "Tasks."** Simple requests use fractions of a Task; heavier requests use more. When your monthly allowance runs out, AI features pause until the next billing date, or you can buy extra capacity in US$20 blocks that roll over for up to three months \[[Source](https://www.diabrowser.com/plans?ref=theaidirectory.com.au)\].
- **Every new user gets a 14-day free trial of Better Days**, no credit card required \[[Source](https://www.diabrowser.com/plans?ref=theaidirectory.com.au)\].
- **Existing users are grandfathered.** If you already use Dia, you keep what you have for free, with at least 30 days' email notice before paid plans apply to your account. Windows beta users are unaffected for now \[[Source](https://www.diabrowser.com/plans?ref=theaidirectory.com.au)\].

So: A$0 for a nice ordinary browser, roughly A$28 a month for the AI chat that is the point of the product, and roughly A$140 a month for the Morning Brief and deck-building features in the ads. That top figure is more than ChatGPT Plus, Claude Pro and a Perplexity Pro subscription combined.

## How it works / features

You browse normally, and the assistant is always a shortcut away. The pieces that matter:

- **Chat with your tabs.** Ask about the page you are reading, or across everything you have open — compare three quotes in three tabs, or pull the numbers out of an annual report without copy-pasting.
- **Context from your tools.** On paid plans, Dia connects to Slack, Gmail, Outlook, Notion, GitHub, Google Calendar and Figma, so answers can draw on your inbox and your team's chat as well as the open page \[[Source](https://www.diabrowser.com/plans?ref=theaidirectory.com.au)\].
- **Morning Brief (Better Days).** A daily digest built from your calendar, inbox and key links \[[Source](https://www.diabrowser.com/?ref=theaidirectory.com.au)\].
- **Meeting prep, reports and decks (Better Days).** Background prep before each meeting, recaps after, and draft documents or decks built from scattered context \[[Source](https://www.diabrowser.com/?ref=theaidirectory.com.au)\].
- **Proper browser bones.** Profiles, tab groups, split view, picture-in-picture, a built-in ad and tracker blocker, and cross-device sync that Dia says is end-to-end encrypted \[[Source](https://www.diabrowser.com/plans?ref=theaidirectory.com.au)\].
- **Dia for Work.** A team version with SSO and admin controls, in line with Atlassian's enterprise-browser pitch \[[Source](https://www.diabrowser.com/?ref=theaidirectory.com.au)\].

On data handling: Dia says browsing data is encrypted and stored locally on your device, and that it cannot read your synced data because sync is end-to-end encrypted. AI requests are different — they pass through Dia's servers to its AI model partners, who are contractually restricted from training on your data, and chat content is deleted from Dia's servers after 30 days. One default worth changing: Dia collects the questions you ask and the answers you receive to improve the product, and this is **on by default**. You can turn it off under Settings → Privacy \[[Source](https://www.diabrowser.com/privacy?ref=theaidirectory.com.au)\].

## What it does well

**It is the calmest, lowest-risk AI browser you can use today.** Because Dia answers rather than acts, the attack that plagues agentic browsers — hidden instructions on a web page hijacking an agent that is logged into your accounts — has far less to work with. No outside researcher has demonstrated against Dia anything like the injection and data-exfiltration findings against Comet. For a business owner, "the AI cannot spend money or click send" is a genuine feature.

**Chat-with-your-tabs is genuinely useful, and well executed.** Several tabs open, questions that span them — that everyday research pattern is exactly what Dia is built for, and it beats the copy-paste-into-ChatGPT dance comfortably. An assistant that can see the page *and* your inbox *and* your calendar gives noticeably better answers about your actual work.

**The Atlassian ownership gives it a credible business future.** Atlassian paid US$610 million because it wants an enterprise-grade work browser, and it is building toward SSO, admin controls and compliance \[[Source](https://www.atlassian.com/blog/announcements/atlassian-acquires-the-browser-company?ref=theaidirectory.com.au)\]. Of all the AI browsers, Dia is the one most likely to end up approved by an IT department.

**The trial and grandfathering are fair.** Fourteen days of the top plan with no credit card is a proper trial, and existing users keep their current deal with 30 days' notice of any change \[[Source](https://www.diabrowser.com/plans?ref=theaidirectory.com.au)\].

## Where it falls short

**Mac-only, and recent-Mac-only.** Dia requires an Apple Silicon Mac on macOS 14 or later \[[Source](https://www.diabrowser.com/?ref=theaidirectory.com.au)\]. No Windows release, no mobile apps. Most Australian businesses run Windows; for them Dia simply does not exist yet, and the Windows version is still a waitlisted beta with a launch pointed at late 2026 \[[Source](https://www.digitaltrends.com/computing/after-a-long-wait-dia-browser-is-finally-coming-to-windows/?ref=theaidirectory.com.au)\].

**The new pricing is steep, and the free tier lost its brain.** New users get no AI on the free plan at all — the thing that makes Dia Dia now starts at US$20 a month, and the features in the marketing (Morning Brief, decks, meeting prep) sit at US$100 a month, around A$140\. Usage is metered in "Tasks" on top of that, with paused AI or US$20 top-up blocks when you run out \[[Source](https://www.diabrowser.com/plans?ref=theaidirectory.com.au)\]. Comet's browser is free everywhere with a US$20 plan for its agent; Dia is asking five times that for its best self.

**It will not do anything for you.** The flip side of the safety story: Dia answers and drafts, but it does not book the flight, fill the form or chase the quote. If you want an AI that acts on the web, this is not it — and at the US$100 tier you are paying agent money for a very good summariser.

**The chat-sharing default leans the wrong way.** Collecting your questions and answers to improve the product, on by default, is not the setting a privacy-first work browser should ship with — even with the 30-day deletion and no-training restrictions Dia describes \[[Source](https://www.diabrowser.com/privacy?ref=theaidirectory.com.au)\]. Turn it off on day one.

**The product is in flux.** In fourteen months Dia has gone from invite-only beta, to free-with-limits, to a three-tier structure with a US$100 flagship — while the same company wound down Arc, the browser its users loved. Atlassian's repositioning toward "Dia for Work" is promising, but you are adopting a product whose shape is still being decided.

## Australian fit

**Ownership is the bright spot — with an asterisk.** Atlassian was founded in Sydney and is the biggest software name this country has produced, and Dia is now its browser. That is a real story. But The Browser Company still builds and runs Dia from New York, and nothing about the product is localised for Australia. **Pricing:** US dollars only, no AUD price, and no published GST treatment — confirm at checkout. **Data residency:** none offered. Browsing data stays encrypted on your device, which helps, but AI chat passes through Dia's servers to its model partners with no onshore option and no Australian commitments — a gap for Privacy Act-sensitive work \[[Source](https://www.diabrowser.com/privacy?ref=theaidirectory.com.au)\]. **Support:** no Australian entity, presence or local-time support channel for Dia. **Availability:** the download is open to Australians with no regional lock, but only on Apple Silicon Macs — which excludes the Windows majority of Australian businesses until the promised late-2026 release. Australian Fit: 2/5.

## Score

| Criterion             | Score     | Why                                                                                                                                                                                   |
| --------------------- | --------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Value for Money       | 3/5       | Fair free browser, honest trial and grandfathering — but new users get no free AI, chat costs \~A$28–34/month, and the headline features cost \~A$140–171/month plus metered "Tasks." |
| Ease of Use           | 4/5       | Polished, familiar Chromium base; chat-with-your-tabs is the easiest AI-browser pattern to learn, and tool connections are one-click.                                                 |
| Feature Depth         | 3/5       | Cross-tab chat, seven tool integrations, Morning Brief, meeting prep and deck drafts — real depth, but no agentic actions and no mobile.                                              |
| Australian Fit        | 2/5       | Australian-founded owner, but USD-only pricing, unpublished GST treatment, no AU data residency, no local support, and Mac-only availability.                                         |
| Reliability & Support | 3/5       | The safest security posture in the category and Atlassian's backing — offset by a fast-shifting product, a share-by-default privacy setting, and the Arc precedent.                   |
| **Total**             | **15/25** |                                                                                                                                                                                       |

⭐⭐⭐ Good (11–15).

Australian Fit is 2/5, below the 4/5 threshold in our [methodology](https://www.theaidirectory.com.au/methodology/), so Dia cannot be named a category Top Pick regardless of its score.

## Bottom line

**If you are on an Apple Silicon Mac and your work is research-heavy, try it.** The 14-day Better Days trial costs nothing and needs no card. Two weeks of chatting with your tabs, connected to your inbox and calendar, will tell you quickly whether the workflow sticks — and Dia is the one AI browser you can trial without worrying about an agent going rogue in your logged-in accounts.

**If you are on Windows, wait.** Dia does not run on your machine, and the public Windows release is pointed at late 2026\. [Comet](https://www.theaidirectory.com.au/review-comet-australia-2026/) is the AI browser you can actually use today — just read our security notes before you trust its agent with anything.

**If you are weighing up paying, be honest about which tier you would live on.** Better Answers at \~A$28–34 a month is defensible if the cross-tab chat replaces a standalone chatbot subscription. Better Days at \~A$140–171 a month is a lot of money for briefings and deck drafts a general-purpose AI assistant can approximate for a fifth of the price. Trial Better Days, then step down and see what you miss.

**The "one to watch" line from our June roundup still stands.** Atlassian's ownership makes Dia the most business-credible AI browser in the category, and if Dia for Work ships proper admin controls, AUD billing and an Australian data story, its Australian Fit — and its score — will climb. Until then, it is a polished, safe, expensive product most Australians cannot run yet.

Update history 
- **24 Sep 2026 — a second range in this review carried BOTH retired conventions at once.** The verdict paragraph read *“roughly A$28–34”* and *“roughly A$140–171”*. The low ends are correct at 1.4045; the high ends are **US$ × 1.55 × 1.10** — the retired FX basis **and** a 10% GST gross-up, both of which our AUD pricing rule and our GST rule retired on the same day, 5 September 2026\. The table above was already correct, so the review disagreed with itself. Upper bounds removed.
- **24 Sep 2026 🇦🇺 CORRECTION — an AUD range whose upper end was still on the retired 1.55 basis.** Found by sentry 18 after it was taught that **a currency stated once governs the whole list**: this review converted the **low** end of its range at **1.4045** and the **high** end at about **1.55**, so the two figures sat side by side on two different bases and the wrong one looked like a legitimate upper bound. Our AUD pricing rule retired 1.55 on 5 September 2026\. **The US figures are unchanged and correct**; only the Australian upper bound moves. Recalculated at US$1 = A$1.4045 (Frankfurter/ECB, 18 September 2026), ex-GST per our GST rule.
- **21 Sep 2026** — Citation fix: `en.wikipedia.org/wiki/Dia_(web_browser)` returns HTTP 404 — no standalone Wikipedia article for Dia exists (checked both `Dia_(browser)` and `Dia_(web_browser)`; The Browser Company's own Wikipedia page only covers the December 2024 announcement and doesn't mention the October 2025 macOS launch). Found in a full-corpus citation check. Repointed the "public macOS availability October 2025" citation to 9to5Mac's contemporaneous report. No change to the claim itself — the date and no-invite detail are unchanged and independently corroborated. [Source](https://9to5mac.com/2025/10/08/dia-the-browser-companys-ai-powered-browser-is-now-generally-available-on-macos/?ref=theaidirectory.com.au) — read 21 September 2026\. Wayback: capture pending (Save Page Now HTTP 500, availability API HTTP 429 on 21 Sep 2026, second consecutive day).
- **20 Sep 2026** — Tense corrected: **ChatGPT Atlas has been discontinued.** OpenAI announced the deprecation on 9 July 2026 and the browser stopped working on 9 August 2026\. Atlas is named here only as a former rival. Score unchanged. [Source](https://help.openai.com/en/articles/20001371-evolving-atlas-into-chatgpt-for-browser-based-agentic-work?ref=theaidirectory.com.au) · [Wayback](https://web.archive.org/web/20260917212603/https://help.openai.com/en/articles/20001371-evolving-atlas-into-chatgpt-for-browser-based-agentic-work)
- **1 Sep 2026** — First reviewed. Previously covered as an unscored "watch" entry in our [AI browsers roundup](https://www.theaidirectory.com.au/best-ai-browsers-australia-2026/) (25 Jun 2026).

## Frequently asked questions

### Is Dia free?

The browser is a free download, but for new users the free plan no longer includes AI — it covers profiles, tab groups, split view, ad blocking and sync only. AI chat starts on the Better Answers plan at US$20/month (\~A$28), and the Morning Brief, meeting prep and deck features need Better Days at US$100/month (\~A$140). Every new user gets a 14-day free trial of Better Days with no credit card, and existing users keep their current free access with 30 days' notice before any change.

### What computers does Dia run on?

Apple Silicon Macs (M1 or later) running macOS 14 or newer — only. There is no Windows release yet and no mobile apps. A Windows version is in a waitlisted beta, with a public launch flagged for the US autumn of 2026 (September–November).

### Does Atlassian own Dia?

Yes. Atlassian — the Australian-founded company behind Jira, Confluence and Trello — agreed to buy The Browser Company for US$610 million in cash on 4 September 2025 and completed the acquisition on 21 October 2025\. Atlassian is positioning Dia as an AI-native "browser for work." The product is still built and operated by The Browser Company team in New York.

### Is Dia an agentic browser like Comet or ChatGPT Atlas?

No, and that is deliberate. Dia's AI answers questions, summarises across your tabs and drafts documents, but it does not click, shop, book or fill forms on your behalf. That makes it far less exposed to the prompt-injection attacks demonstrated against agentic browsers — and also means it will not do tasks for you.

### Does Dia store my data in Australia?

No. Dia publishes no Australian data-residency option. Browsing data is encrypted and stored locally on your device and sync is end-to-end encrypted, but AI chats pass through Dia's servers to its model partners, with content deleted after 30 days. Note that sharing your chats to improve the product is on by default — you can switch it off under Settings → Privacy.

## Read next

- [Best AI browsers for Australians in 2026 — the honest verdict](https://www.theaidirectory.com.au/best-ai-browsers-australia-2026/)
- [Comet review: Perplexity's agentic browser, tested for Australia](https://www.theaidirectory.com.au/review-comet-australia-2026/)
- [ChatGPT Atlas post-mortem: the agentic browser OpenAI switched off on 9 August 2026](https://www.theaidirectory.com.au/review-chatgpt-atlas-australia-2026/)
- [Atlassian Rovo review: AI across Jira and Confluence](https://www.theaidirectory.com.au/atlassian-rovo/)
- [How we score AI tools — our review methodology](https://www.theaidirectory.com.au/methodology/)

## Sources

- https://www.diabrowser.com/ (primary; product page, macOS 14+/Apple Silicon requirement, Morning Brief, Dia for Work) — Wayback: https://web.archive.org/web/20260901220515/https://www.diabrowser.com/
- https://www.diabrowser.com/plans (primary; Better Browser / Better Answers US$20 / Better Days US$100, Tasks metering, US$20 top-up blocks, 14-day trial, 17 August rollout, grandfathering, Windows note) — Wayback: https://web.archive.org/web/20260829032837/https://www.diabrowser.com/plans
- https://www.diabrowser.com/privacy (primary; local encrypted storage, E2E sync, 30-day server deletion, share-by-default setting, AI partner restrictions) — Wayback: https://web.archive.org/web/20260901213930/https://www.diabrowser.com/privacy
- https://www.atlassian.com/blog/announcements/atlassian-acquires-the-browser-company (primary; acquisition announcement 4 Sep 2025, browser-for-work positioning, trust and security commitment) — Wayback: https://web.archive.org/web/20260514235058/https://www.atlassian.com/blog/announcements/atlassian-acquires-the-browser-company
- https://www.businesswire.com/news/home/20251021473486/en/Atlassian-Completes-Acquisition-of-The-Browser-Company-of-New-York (primary; acquisition completed 21 Oct 2025) — Wayback: not archivable — archive.org Save Page Now returns a persistent origin-side error (HTTP 520/523) for this URL (secondary/context source; all primary sources for this review are snapshotted). Live URL checked 2026-09-02
- https://www.cnbc.com/2025/09/04/atlassian-the-browser-company-deal.html (secondary; US$610M all-cash deal value) — Wayback: https://web.archive.org/web/20260901213434/https://www.cnbc.com/2025/09/04/atlassian-the-browser-company-deal.html
- https://techcrunch.com/2025/06/11/the-browser-company-launches-its-ai-first-browser-dia-in-beta (secondary; beta launch 11 Jun 2025) — Wayback: https://web.archive.org/web/20260901213552/https://techcrunch.com/2025/06/11/the-browser-company-launches-its-ai-first-browser-dia-in-beta/
- https://techcrunch.com/2025/08/06/the-browser-company-launches-a-20-monthly-subscription-for-its-ai-powered-browser (secondary; Dia Pro US$20 launch 6 Aug 2025, free-tier AI limits at the time) — Wayback: https://web.archive.org/web/20260901220539/https://techcrunch.com/2025/08/06/the-browser-company-launches-a-20-monthly-subscription-for-its-ai-powered-browser/
- https://www.digitaltrends.com/computing/after-a-long-wait-dia-browser-is-finally-coming-to-windows/ (secondary; Windows beta/waitlist and late-2026 launch window) — Wayback: https://web.archive.org/web/20260901213654/https://www.digitaltrends.com/computing/after-a-long-wait-dia-browser-is-finally-coming-to-windows/
- https://9to5mac.com/2025/10/08/dia-the-browser-companys-ai-powered-browser-is-now-generally-available-on-macos/ (secondary; public macOS availability, no invite required, 8 October 2025) — **repointed 21 Sep 2026** — the original citation, `en.wikipedia.org/wiki/Dia_(web_browser)`, returns HTTP 404 and no article exists under that title. Wayback: capture pending (Save Page Now HTTP 500, availability API HTTP 429 on 21 Sep 2026)

Exchange rate used: US$1 ≈ A$1.40 (house rate, checked September 2026). Dia does not publish GST treatment for Australian customers; AUD figures shown ex GST with the ex-GST estimate flagged in the body.