
SpecialistThe AI workspace where teams and agents get work done together
Glean records 3,301,875 monthly visits with +0.1% month-over-month growth and Contact for Pricing pricing. Spamdrain records 185,960 monthly visits with +22.6% growth and Free Trial, Paid pricing.

Antispam service that keeps junk mail, phishing and viruses out of every inbox
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | glean.com | spamdrain.com |
| Pricing Model | Contact for Pricing | Free Trial, Paid |
| Monthly Visits | 3.3M (3,301,875) | 185.96K (185,960) |
| MoM Traffic Delta | +4.86K (+0.1%) | +34.27K (+22.6%) |
| Primary Market & Share | 🇺🇸 United States (56.6%) | 🇺🇸 United States (67.9%) |
| Direct Visits / mo | 2.63M | 154.26K |
| User Rating | 4.6 | 4.3 |
| Supported Platforms | Website | Website |

Enterprise AI grounded in your company's own knowledge
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.
Reusable agents handle multi-step workflows such as onboarding, account research, or incident follow-up by orchestrating actions across business apps.
Glean automatically picks and routes requests to the right model and reasoning level, giving teams access to 40+ LLMs through a single governed gateway.
Draft on-brand documents, summarise meetings, analyse data, and create content grounded in company context rather than generic model knowledge.

Antispam service that keeps junk mail, phishing and viruses out of every inbox
Works with iPhone, Android, Mac, PC, Office 365 and general IMAP/POP accounts, so one filter protects every device that reads the same mailbox.
Every new message is analysed before delivery, and suspicious senders, malicious links and infected attachments are stopped instead of reaching you.
Each time you mark something as spam or confirm it is legitimate, the filter learns your preferences and gets more accurate over time.
Held messages are not lost. You can open your Spamdrain account, inspect what was blocked, and release false positives with a click.

SpecialistThe AI workspace where teams and agents get work done together

SpecialistDelivers a lightning-fast email productivity suite, but focuses on user speed rather than automated spam defense.
SpecialistDelivers a lightning-fast email productivity suite, but focuses on user speed rather than automated spam defense.

Builds collaborative enterprise AI agents connected to company knowledge, but offers less robust out-of-the-box universal search.
Builds collaborative enterprise AI agents connected to company knowledge, but offers less robust out-of-the-box universal search.

SpecialistOffers cross-platform email management with built-in AI writing tools without dedicated spam-filtering capabilities.
SpecialistOffers cross-platform email management with built-in AI writing tools without dedicated spam-filtering capabilities.
SpecialistBuild, share, and control AI agents that actually do the work
SpecialistBuild, share, and control AI agents that actually do the work

SpecialistFeatures a privacy-first email client with AI assistance, lacking Spamdrain's dedicated inbound spam protection.
SpecialistFeatures a privacy-first email client with AI assistance, lacking Spamdrain's dedicated inbound spam protection.

SpecialistReplaces your email client with an AI-powered interface, whereas Spamdrain filters existing mailboxes transparently.
SpecialistReplaces your email client with an AI-powered interface, whereas Spamdrain filters existing mailboxes transparently.

SpecialistAutomates employee IT and HR support requests exceptionally well, but focuses less on general universal document search.
SpecialistAutomates employee IT and HR support requests exceptionally well, but focuses less on general universal document search.

SpecialistDeploys enterprise conversational assistants and automated workflows, but lacks Glean's unified organization-wide knowledge graph search.
Creates permission-aware context graphs and routes tasks across enterprise tools, but has a smaller connector library than Glean.
Creates permission-aware context graphs and routes tasks across enterprise tools, but has a smaller connector library than Glean.

Combines enterprise search, AI agents, and corporate learning, but is less specialized for pure universal workplace search than Glean.

SpecialistUnifies multiple mail accounts into chat-like workspaces, focusing on team collaboration rather than automated spam blocking.
SpecialistUnifies multiple mail accounts into chat-like workspaces, focusing on team collaboration rather than automated spam blocking.