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HeyDeer vs memsync

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

HeyDeer compared with memsync
DetailHeyDeer logo HeyDeermemsync logo memsync
What it doesAI code reviews and fixes for GitHub pull requests One set of memories across every machine you work on
StageNot given Not given
FoundedNot given Not given
Based inSG US
Pricing modelFreemium Freemium
PricingFree: 1,000 credits first month, 300 monthly after; Starter: $9/month with 2,500 monthly credits; Pro: $39/month with 12,000 monthly credits. No seat fees. Add-on credits start at $5 for 500 credits at base rate of $10 per 1,000 credits, with volume discounts. Reviews of public repositories free up Mac app free with no account on one machine; $15 per month to sync every machine with 14 days free trial; iPhone app $7.99 once.
Key features
  • Independent review model that checks all pull requests uniformly regardless of authorship
  • Dual model verification to reduce false positives
  • Autopilot for automated fixing and iteration
  • Review walkthrough showing what to read first and what to skim
  • Support for team standards via REVIEW.md and AGENTS.md
  • Configurable feedback scope (Concise, Balanced, Detailed)
  • Standard and Deep review depths for different complexity levels
  • MCP servers for additional review context
  • Works with public and private repositories
  • @heydeer mention for questions and task handoff
  • Session capture from Claude Code, Codex and Cursor on Mac and Linux
  • Full-text search over all memories by project, kind and machine
  • MCP tools in every session for search, recent, status and machines
  • Search from any browser at mem.i8l.tech
  • Local viewer on 127.0.0.1 answering from hub or local mirror
  • Project exclude list kept locally to prevent capture
  • Export everything as SQLite file with one-click deletion
  • One token per machine, revocable without affecting other machines
  • Sync every 15 minutes using content identity
What makes it different
  • Finds 78% more issues than GitHub Copilot on the same pull requests
  • No seat fees regardless of team size or number of repositories
  • Independent and uniform review across all code sources and models
  • Automated fixing with Autopilot until PR is ready to merge
  • Free reviews for open source projects up to fair-use limit
  • Content identity ensures the same memory from multiple machines lands once safely
  • Free on one Mac with no account or setup required
  • Memories retained 30 days after subscription ends for export
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)3 +1 (up) since last checkNot checked yet no change since last check
Trust Flow (Majestic)10
Citation Flow (Majestic)310
Referring domains (Majestic)130

6 details filled in for both companies.

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