How do their growth rates compare?

Dex by Thirdlayer has a month-over-month growth rate of +9.5%; Dia Browser has +108.4%.

How does pricing compare?

Dex by Thirdlayer: Freemium. Freemium with an onboarding-based entry point. The site invites users to install Dex and then book an onboarding call; the vendor also mentions talking to them about private cloud, which is typically an enterprise conversation. No public price list is published, so check the site for current plan details. 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.

What are alternatives to Dex by Thirdlayer and Dia Browser?

Other tools in related categories include Monica, Sider, Merlin AI, Tabbit Browser, Eigent AI.

Dex by Thirdlayer vs Dia Browser — Traffic (9.26K vs 1.25M), Pricing & Verdict

Open AI Tools

Dex by Thirdlayer vs Dia Browser — Traffic (9.26K vs 1.25M), Pricing & Verdict | Open AI Tools

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	Dex by Thirdlayer	Dia Browser
Official Domain	joindex.com	diabrowser.com
Pricing Model	Freemium	Free
Monthly Visits	9.26K (9,262)	1.25M (1,254,172)
MoM Traffic Delta	+803 (+9.5%)	+652.37K (+108.4%)
Primary Market & Share	🇺🇸 United States (85.7%)	🇺🇸 United States (29%)
Direct Visits / mo	5.75K	740.36K
User Rating	4.3	4.3
Supported Platforms	Website	Website

Dex by Thirdlayer

The self-driving workspace that remembers everything about your operations

Operational Graph

A living organisational record that organises every message, meeting, deal update and workflow event into entities, relationships, timelines and dependencies.

Knowledge Manual

An editable, automatically maintained layer for priorities, open loops, SOPs and operating principles — the judgment side of your assistant.

Autonomous agents

Agents that orchestrate across Gmail, Slack, CRM and 20+ tools, triggered by events or on a schedule.

Browser control

Dex can navigate tabs, fill forms and complete tasks directly in your browser, cutting context switching.

Strengths & Pros

+Differentiated memory model that separates factual retrieval from judgment-based reasoning
+Browser-first design means it works where your context already lives
+Acts as well as answers: agents execute tasks across Gmail, Slack, CRM and more
+Context is portable via SDK and MCP rather than locked inside one chat window
+Enterprise options including private cloud, 256-bit encryption and full data control