Metro Retro
3.1Now rebranded as Ludi — the playful retro whiteboard lives on under a new name
Metro Retro was a fun, freeform online whiteboard built for sprint retrospectives, known for its playful templates, timer and engagement features. In 2024 the product was rebranded: metroretro.io now redirects to ludi.co, and the maker (Deqo Software Limited) positions Ludi as the continuation — 'Metro Retro is now Ludi.' If you are searching for Metro Retro, the product you want is Ludi; the original Metro Retro brand and domain are no longer maintained.
Full review →
Retrium
5.1Guided 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 →Summary
Metro Retro scores 3.1 overall and is best for searchers looking for Metro Retro — the product now exists as Ludi. Use Ludi (or a dedicated retro tool) instead. It offers custom pricing.
Retrium scores 5.1 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. Retrium leads on ease of use, retro toolkit, value, integrations and enterprise-grade.
Across our seven scoring dimensions, Retrium edges ahead with an overall score of 5.1. That said, the right pick depends on your team — see the dimension-by-dimension breakdown below.
Scores compared
| 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; 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 |
| Features | 7 | 23 |
| Integrations | 0 | 2 |
Feature & integration comparison
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 | — | — |
Metro Retro — pros
- + The product you remember still exists — it's now called Ludi
- + Carried its playful templates, timer, GIFs and icebreakers into the rebrand
- + Freeform whiteboard canvas that's friendly for engagement-first retros
Metro Retro — cons
- − The Metro Retro brand and metroretro.io domain are retired (the domain now redirects to ludi.co)
- − No standalone free tier under the new brand — Ludi is a 30-day trial then paid
- − Light on the agile stack: no Jira/Slack/Teams integrations, no SSO, no SOC 2, no AI
- − Not a dedicated retro platform — it's a general whiteboard you adapt for retros
Retrium — pros
- + Battle-tested five-phase guided facilitation flow
- + Anonymous brainstorming and grouping by design
- + Persistent team-room action plan that carries forward between retros
- + Team Radar covers psychological safety and custom health checks
- + Per-team-room pricing with unlimited users on every plan
Retrium — cons
- − No free tier; 30-day trial only
- − Integrations are thin beyond Jira Cloud and a <em>still-beta</em> Slack app
- − <strong>No AI features at all</strong> — no summary, clustering, action-item extraction or insights
- − No native Microsoft Teams, Azure DevOps, GitHub, Linear or Confluence integration
- − Public shipping cadence has slowed — no 2025 changelog or product blog activity visible
- − Retro-only scope; no planning poker, kudos, icebreakers or whiteboard