How do their growth rates compare?

Glean has a month-over-month growth rate of +0.1%; Review Express has —.

How does pricing compare?

Glean: Contact for Pricing. Contact for pricing. Glean is licensed to organisations based on seats, connectors, and deployment scope, and is evaluated through a demo rather than self-serve purchase. Review Express: Freemium. Freemium. The extension is free to add from the Chrome Web Store, and the developer also operates a web app at review-express-v1.vercel.app that offers a download and a sign-in, suggesting account-based paid or expanded usage. No specific plan prices or free-tier limits were published on the pages checked, so exact quotas should be confirmed in the app itself.

What are alternatives to Glean and Review Express?

Other tools in related categories include Notion, Merlin AI, Glasp, Dust, Gumloop.

Glean vs Review Express — Traffic (3.3M vs 0), Pricing & Verdict

Open AI Tools

Glean vs Review Express — Traffic (3.3M vs 0), Pricing & Verdict | Open AI Tools

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	Glean	Review Express
Official Domain	glean.com	chromewebstore.google.com
Pricing Model	Contact for Pricing	Freemium
Monthly Visits	3.3M (3,301,875)	0 (0)
MoM Traffic Delta	+4.86K (+0.1%)	0 (—)
Primary Market & Share	🇺🇸 United States (56.6%)	🌐 Global (—)
Direct Visits / mo	2.63M	0
User Rating	4.6	3.4
Supported Platforms	Website	Browser Extension

Glean

Enterprise AI grounded in your company's own knowledge

Permission-aware enterprise search

Ask a question in plain language and get a cited answer assembled from documents, tickets, wikis, and messages across every connected system, with permissions respected.

Agent builder and orchestration

Reusable agents handle multi-step workflows such as onboarding, account research, or incident follow-up by orchestrating actions across business apps.

Model routing and AI gateway

Glean automatically picks and routes requests to the right model and reasoning level, giving teams access to 40+ LLMs through a single governed gateway.

Grounded content and analysis

Draft on-brand documents, summarise meetings, analyse data, and create content grounded in company context rather than generic model knowledge.

Strengths & Pros

+Answers cite source systems and inherit their permissions, which removes the main blocker to enterprise-wide rollout
+One platform covers search, assistant, and agents instead of three separate vendors
+Model routing and token efficiency directly reduce the cost per AI query at scale
+275+ pre-built connectors shorten integration work considerably