A side-by-side look at scores, pricing, features and integrations to help you pick the right retrospective tool.

Rebranded twice — Metro Retro became Ludi, now Spreo; the playful retro whiteboard lives on
Metro Retro was a fun, freeform online whiteboard built for sprint retrospectives, known for its playful templates, timer and engagement features. The product has since been rebranded twice by its maker, Deqo Software Limited: to Ludi in August 2025, then to Spreo. The metroretro.io domain now 301-redirects all the way through to spreo.io. If you are searching for Metro Retro, the product you want is Ludi/Spreo; the original Metro Retro brand and domain are no longer maintained.
Full review →
Guided retrospectives and Team Radars for scrum and agile teams
Retrium is a long-running, retrospectives-only tool that emphasises guided five-phase facilitation, anonymous brainstorming, voting, a persistent action plan, and Team Radar health checks for distributed teams.
Full review →Metro Retro scores 3.0 overall and is best for searchers looking for Metro Retro — the product now exists as Ludi/Spreo. Use it (or a dedicated retro tool) instead. It offers custom pricing.
Retrium scores 4.6 overall and is best for scrum masters and agile coaches who want a focused, retro-only tool with strong facilitation guardrails and a built-in Team Radar. It offers paid plans from $39/mo.
Metro Retro leads on fun factor and open platform. Retrium leads on ease of use, retro toolkit, value, integrations and enterprise-grade.
Across our eight scoring dimensions, Retrium edges ahead with an overall score of 4.6. That said, the right pick depends on your team — see the dimension-by-dimension breakdown below.
| Detail | Metro Retro | Retrium |
|---|---|---|
| Category | Whiteboard | Retrospectives |
| Team size | Small | Mid-market |
| Free tier | No | No |
| Free limit | 30-day free trial (column techniques and Team Radar), no credit card required | |
| Starting price | Free | $39/mo |
| Est. 3 teams × 8 people | N/A — rebranded as Ludi/Spreo; see the Ludi listing | $117/mo |
| Enterprise | No | Yes |
| Founded | — | 2014 |
| HQ | United Kingdom | Washington, D.C., USA |
| Data residency | — | — |
| Languages | English only | English only |
| Export formats | PDF · CSV · HTML · Markdown · JSON · Jira | CSV · Jira |
| Features | 7 | 23 |
| Integrations | 0 | 2 |
Side-by-side checklist across features, integrations and security. Hover a note for details.
| Capability | Metro Retro | Retrium |
|---|---|---|
| Features | ||
| AI Summaries | — | — |
| AI grouping/clustering | — | — |
| AI action items | — | — |
| Action tracking | — | ✓ |
| Team Insights | — | — |
| Polling | — | — |
| Action dashboard | — | ✓note |
| Custom templates | — | ✓ |
| Anonymous input | — | ✓ |
| Independent voting | ✓ | ✓ |
| Async mode | — | ✓ |
| Agile Estimations | — | — |
| Health Checks | — | ✓ |
| Team Kudos | — | — |
| Whiteboard | ✓ | — |
| Integrations | ||
| Asana | — | — |
| Azure DevOps | — | — |
| Basecamp | — | — |
| ClickUp | — | — |
| Confluence | — | — |
| GitHub | — | — |
| GitLab | — | — |
| Jira | — | ✓note |
| Linear | — | — |
| Microsoft Teams | — | — |
| Monday.com | — | — |
| Notion | — | — |
| Shortcut | — | — |
| Slack | — | ✓note |
| Trello | — | — |
| Security & Privacy | ||
| SOC 2 | — | ✓ |
| GDPR | — | ✓ |
| SSO / SAML | — | ✓note |
| SCIM provisioning | — | ✓note |
| ISO 27001 | — | — |
| On-premises | — | — |
| Public API | — | — |
| Webhooks | — | — |
| MCP server | — | — |
Not sure which to pick? Read our guide on how to choose a retrospective tool.