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Tools · Comparison

CodiumAI vs Devin vs Mails.ai

All three are code assistant tools. Here is what separates them.

CodiumAIDevinMails.ai
What it isQodo is an agentic code review and integrity platform for improving code quality at every stage.An autonomous software engineer that takes a ticket, works in its own environment, and opens a pull request.Self-serve AI email API + MCP for agents. Per-agent addresses, per-agent reputation, native prompt-injection scanning on every inbound.
CategoryCode AssistantCode AssistantCode Assistant
PricingFree · FreePaid · From $20/mo (usage-based)Freemium · $15 - $149/mo
How it billsFreeUsage-basedFlat monthly
Free tierYesNoYes
RatingNot yet ratedNot yet ratedNot yet rated
Features—
  • Own sandboxed dev environment
  • Browser, shell and editor access
  • Opens pull requests
  • Slack and Jira integration
  • Runs several tasks in parallel
—
What works
  • Has a free tier, so it can be tried before paying
  • Free to use
  • Sits in Code Assistant, one of the better-covered categories here — easy to compare
  • Genuinely unattended on well-scoped tasks
  • Fits existing review workflow
  • Parallel tasks scale out routine work
  • Has a free tier, so it can be tried before paying
  • Publishes its price openly — $15 - $149/mo
  • Sits in Code Assistant, one of the better-covered categories here — easy to compare
What does not
  • 97 other tools in this catalogue claim to do the same job
  • The vendor describes it only briefly, so what it does is not fully clear from their own site
  • Expensive per task
  • Poor at ambiguous or exploratory work
  • Still needs careful review
  • 97 other tools in this catalogue claim to do the same job
Visit CodiumAIVisit DevinVisit Mails.aiCompare more tools