Glean
Work AI that Works | Agents, Assistant & Search
VS
Spark Mail
Smart. Focused. Email.
Detailed comparison
Criteria
Glean
Spark Mail
Pricing
Enterprise
Freemium
Plans & pricing
Enterprise: Custom
Free: Free, Plus: $10/mo, Spark +AI: $20/mo, Enterprise: Custom
Free trial
No
No
Audience
b2b
b2c
Platforms
Web
Desktop, Ios, Android
API
No
No
Open Source
Proprietary
Proprietary
Integrations
Slack
—
Categories
Specialized Technologies, information technology & services, Search engine
Communication, information technology & services, Email management
Popularity
Very High
Very High
Description
Glean is the Work AI platform connected to your enterprise's data. Find, create, and automate anything. Explore what Work AI can do for you!
Spark helps you take your inbox under control. It allows you to instantly see what’s important and quickly clean up the rest.
Pricing
Glean
Enterprise
Spark Mail
Freemium
Plans & pricing
Glean
Enterprise: Custom
Spark Mail
Free: Free, Plus: $10/mo, Spark +AI: $20/mo, Enterprise: Custom
Free trial
Glean
No
Spark Mail
No
Audience
Glean
b2b
Spark Mail
b2c
Platforms
Glean
Web
Spark Mail
Desktop, Ios, Android
API
Glean
No
Spark Mail
No
Open Source
Glean
Proprietary
Spark Mail
Proprietary
Integrations
Glean
Slack
Spark Mail
—
Categories
Glean
Specialized Technologies, information technology & services, Search engine
Spark Mail
Communication, information technology & services, Email management
Popularity
Glean
Very High
Spark Mail
Very High
Description
Glean
Glean is the Work AI platform connected to your enterprise's data. Find, create, and automate anything. Explore what Work AI can do for you!
Spark Mail
Spark helps you take your inbox under control. It allows you to instantly see what’s important and quickly clean up the rest.
Features
Glean
Enterprise AI Search
Personal AI Assistant
AI Agentic Engine
Enterprise Graph & Data Connectors
Hybrid Search
Seamless Workplace Integrations (e.g., Slack, Microsoft)
Spark Mail
Smart Inbox
AI Assistant
Gatekeeper
Priority Email
Home Screen
Calendar & Meeting Notes
Key differentiators
Glean
- Work AI platform for enterprise data
- Enterprise AI Search & Personal Assistant
- AI Agentic Engine for automation
Spark Mail
- AI Assistant & Smart Inbox
- Prioritize important emails
- Inbox control & decluttering
Other comparisons
FAQ: Glean vs Spark Mail
Glean: Work AI that Works | Agents, Assistant & Search. Spark Mail: Smart. Focused. Email.. Both tools take different approaches to address similar needs.
Spark Mail offers a freemium plan, while Glean is a contact tool.
The best choice between Glean and Spark Mail depends on your specific needs. Compare their features, pricing, and target audience on this page to find the tool that best fits your use case.
Glean is primarily designed for individuals, while Spark Mail is built for individuals.
Glean offers: Enterprise AI Search, Personal AI Assistant, AI Agentic Engine, Enterprise Graph & Data Connectors. Spark Mail offers: Smart Inbox, AI Assistant, Gatekeeper, Priority Email.
Based on our data, Glean currently enjoys greater popularity. However, popularity isn't the only factor — compare features to find the right tool for your needs.