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Retrace vs rostr

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

Retrace compared with rostr
DetailRetrace logo Retracerostr logo rostr
What it doesThe execution replay engine for AI agents Give your coding agents names so you remember who's doing what
StageNot given Not given
FoundedNot given Not given
Based inIN US
Pricing modelFreemium Free
PricingFree plan includes 1,000 traces/mo and 7-day retention. Starter at $29/mo adds 10,000 traces/mo and 30-day retention. Pro at $99/mo includes 50,000 traces/mo, 90-day retention, and unlimited fork replays. Teams at $399/mo provides 500,000 traces/mo, 365-day retention, up to 10 users, and 1,000 prove Not given
Key features
  • Record every LLM call, tool call, and error with one decorator
  • Step-by-step replay of agent executions
  • Fork and cascade-replay from any failing step
  • Prove-the-fix verification before shipping
  • Runtime guardrails and circuit breakers
  • CI/CD regression gates
  • Multi-agent session tracking and topology graphs
  • Automatic hallucination and drift detection
  • Semantic search across agent runs
  • PII auto-redaction on every plan
  • Assigns unique names to agent sessions from customizable rosters
  • Integrates with Claude Code, Codex, tmux, and herdr
  • Pre-built rosters including Lord of the Rings, Harry Potter, NBA Legends, and more
  • End-to-end encrypted cloud storage for cross-machine sessions
  • API endpoint for building custom dashboards and integrations
What makes it different
  • Turns production failures into regression tests that fail builds when behavior breaks
  • Notifications and messages from agents are instantly traceable by their assigned names
  • Works across multiple machines and cloud environments with optional end-to-end encryption
  • Playful roster themes encourage restraint in spinning up too many concurrent agent sessions
Community votes00
DR (Domain Rating by Ahrefs)6 +1 (up) since last check1 +1 (up) since last check
Trust Flow (Majestic)200
Citation Flow (Majestic)250
Referring domains (Majestic)1150

5 details filled in for both companies.

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