ContextStream vs ExtraBrain

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

ContextStream compared with ExtraBrain
Detail	ContextStream	ExtraBrain
What it does	Shared project context for AI coding agents	Local-first AI interview and meeting copilot for Mac
Stage	Startup	Startup
Founded	2024	Not given
Based in	Not given	Not given
Pricing model	Freemium	Freemium
Pricing	Starter: Free with 10,000 credits every month, 1 user, up to 15 projects. Pro: $19/month with 25,000 credits every month, 1 user, unlimited projects. Elite: $49/month with 100,000 credits every month, 1 user, unlimited projects. Team: $79/user/month with 200,000 credits per seat pooled, 3+ users, $2	Free core app with local Gemma 4, local Parakeet transcription, and bring-your-own provider setup. Pro: $9.99/month, $99/year, or $179 Lifetime. Eligible monthly and yearly Pro subscriptions include 1,000 ExtraBrain AI credits per billing month. External AI and transcription provider usage billed se
Key features	Hosted code search with indexing and dependency graphs Save and retrieve project decisions with reasoning Record lessons from past work to guide future tasks Plans, runbooks, and handoffs for agent coordination MCP integration with Cursor, Claude Code, Codex, Grok Change impact analysis and code health metrics Team collaboration with shared workspaces Privacy controls and access permissions ContextCode CLI and VS Code extension Knowledge Atlas to explore code and project connections	Live transcription with local Parakeet or optional Deepgram Screen-aware context and screenshots for structured answers Hidden from screen sharing on Zoom, Google Meet, Teams, and coding platforms Post-session summaries and organized context Local-first data storage on your Mac Support for multiple interview and meeting platforms Desktop app that does not join calls as a bot
What makes it different	Switch agents without re-explaining the project Decisions and lessons carry over across sessions and tools Full-featured free plan with 10,000 monthly credits High code recall (99.38%) and memory accuracy (91.4%) Evidence-based answers with source attribution	Fully local workflow possible with on-device Gemma and local Parakeet transcription Free to start with optional Pro, unlike bundled subscription services Built around bring-your-own provider access instead of locked-in vendors Designed to stay invisible during screen sharing and recordings
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	29 no change since last check	17 no change since last check
Trust Flow (Majestic)	5	7
Citation Flow (Majestic)	36	25
Referring domains (Majestic)	109	49

6 details filled in for both companies.

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