How do their growth rates compare?

Dia Browser has a month-over-month growth rate of +108.4%; Side Space has 0%.

How does pricing compare?

Dia Browser: Free. Free to download and use on macOS and Windows. The company also promotes a 'Dia for Work' offering aimed at teams, which adds enterprise controls such as SSO and admin tools; check the official site for current enterprise terms. Side Space: Freemium, Paid. Side Space is sold through the Side Space Store on Lemon Squeezy. The storefront currently shows a Side Space Lifetime License at $79.00 as a one-time purchase, and also displays a Subscribe option. Because it is a paid, one-time-license product rather than a metered subscription, there are no per-seat monthly charges advertised on the tracked page.

What are alternatives to Dia Browser and Side Space?

Other tools in related categories include Sider, Tabbit Browser, Eigent AI, HARPA AI, Sigma AI Browser.

Dia Browser vs Side Space — Traffic (1.25M vs 0), Pricing & Verdict

Open AI Tools

Dia Browser vs Side Space — Traffic (1.25M vs 0), Pricing & Verdict | Open AI Tools

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	Dia Browser	Side Space
Official Domain	diabrowser.com	sidespace.lemonsqueezy.com
Pricing Model	Free	Freemium, Paid
Monthly Visits	1.25M (1,254,172)	0 (0)
MoM Traffic Delta	+652.37K (+108.4%)	0 (0%)
Primary Market & Share	🇺🇸 United States (29%)	🌐 Global (—)
Direct Visits / mo	740.36K	0
User Rating	4.3	4.2
Supported Platforms	Website	Website

Dia Browser

The AI browser that reads between your tabs

Morning Brief

Starts the day with a consolidated view of your calendar, inbox and key links so you know what is coming before work begins.

Context-aware answers across tabs and apps

Ask once and Dia searches open tabs along with connected Slack, Notion, Teams, GSuite and other tools to answer with full context.

Decks and reports from scattered context

Requests for a deck or a summary come back as presentable slides and shareable reports rather than raw chat text.

Live Work tab bar

Surfaces where work is actually happening, like a specific pull request or spec draft, so one click lands you in the right place.

Strengths & Pros

+AI is built into the browser's core workflow rather than added as a sidebar
+Context spans tabs, email, calendars and connected work tools for genuinely useful answers
+Outputs are artifacts — reports and slide decks — not just chat responses
+Explicit, user-facing privacy toggles plus end-to-end encrypted sync