Ludi
5.7Playful collaborative whiteboard for agile teams
Ludi (formerly Metro Retro, rebranded August 2025) is a visual agile collaboration whiteboard with 100+ templates spanning retros, planning poker, icebreakers and futurespectives. Its signature illustrated canvas and gadgets make ceremonies feel engaging, and a first AI feature — sticky-note clustering — shipped February 2026.
Full review →
Retro Rabbit
4.8Slack-first retrospectives with async note capture
Retro Rabbit is a Slack-native retrospective tool that lets teams capture notes throughout the sprint with a /retro command, then runs the retro on a synced web board with voting, action items and an optional CarrotIQ AI assistant. <em>Public update cadence appears slow — verify the product is still actively maintained before committing.</em>
Full review →Summary
Ludi scores 5.7 overall and is best for agile teams who want retros, planning and workshops to feel visual and fun, with a solid Jira-backed delivery loop. It offers paid plans from $4/user/mo billed annually.
Retro Rabbit scores 4.8 overall and is best for slack-centric agile teams that want to capture retro notes continuously through the sprint and run lightweight live or async retros without leaving chat. It offers paid plans from $30/mo.
Ludi leads on ease of use, retro toolkit, fun factor, integrations and enterprise-grade. Retro Rabbit leads on AI & insights.
Across our seven scoring dimensions, Ludi edges ahead with an overall score of 5.7. That said, the right pick depends on your team — see the dimension-by-dimension breakdown below.
Scores compared
| Detail | Ludi | Retro Rabbit |
|---|---|---|
| Category | Retrospectives | Retrospectives |
| Team size | Small | Small |
| Free tier | No | No |
| Free limit | 30-day free trial; boards become read-only when the trial expires | 14-day free trial, no credit card required |
| Starting price | $4/user/mo billed annually | $30/mo |
| Est. 3 teams × 8 people | $96/mo billed annually | $90/mo |
| Enterprise | Yes | Yes |
| Founded | 2020 | — |
| HQ | UK | United States |
| Data residency | European Union | — |
| Languages | English only | English only |
| Features | 33 | 17 |
| Integrations | 1 | 1 |
Feature & integration comparison
Side-by-side checklist across features, integrations and security. Hover a note for details.
| Capability | Ludi | Retro Rabbit |
|---|---|---|
| Features | ||
| AI Summaries | — | ✓note |
| AI grouping/clustering | ✓note | ✓note |
| AI action items | — | ✓note |
| Action tracking | ✓ | ✓ |
| Team Insights | — | — |
| Polling | ✓note | — |
| Action dashboard | — | — |
| Custom templates | ✓ | ✓ |
| Anonymous input | ✓note | ✓ |
| Independent voting | ✓ | ✓ |
| Async mode | — | ✓ |
| Agile Estimations | ✓ | — |
| Health Checks | — | — |
| Team Kudos | ✓note | — |
| Whiteboard | ✓ | — |
| Integrations | ||
| Asana | — | — |
| Azure DevOps | — | — |
| Basecamp | — | — |
| ClickUp | — | — |
| Confluence | — | — |
| GitHub | — | — |
| GitLab | — | — |
| Jira | ✓note | — |
| Linear | — | — |
| Microsoft Teams | — | — |
| Monday.com | — | — |
| Notion | — | — |
| Shortcut | — | — |
| Slack | — | ✓ |
| Trello | — | — |
| Security & Privacy | ||
| SOC 2 | ✓note | ✓note |
| GDPR | ✓ | — |
| SSO / SAML | ✓note | ✓note |
| SCIM provisioning | — | — |
| ISO 27001 | — | — |
| On-premises | — | — |
| Public API | — | — |
| Webhooks | — | — |
Ludi — pros
- + Genuinely delightful, illustrated UI that energises in-person and remote retros
- + Broad template library (100+) covering retros, icebreakers, planning poker, futurespectives, planning and estimation
- + Solid two-way Jira integration: backlog refinement, estimation and issue creation in-board
- + Facilitator controls, private writing mode and shareable team spaces
- + First AI feature shipped Feb 2026 — Sort into Topics auto-groups stickies into labelled topics
- + EU-hosted (Amsterdam) and GDPR-aligned (SOC 2 / ISO 27001 sit at the Digital Ocean infrastructure layer, not Ludi)
Ludi — cons
- − No async retro mode, no recurring or scheduled retros
- − No team health check or longitudinal pulse product; mood/radar work via whiteboard templates only
- − Integrations limited to Jira — no Slack, Teams, Confluence, GitHub, Linear or Azure DevOps
- − AI limited to one clustering feature — no summaries, action-item extraction, sentiment or coaching
- − No ongoing free plan; expired trials become read-only
- − SSO gated to a paid/Enterprise plan; no SCIM or audit logs advertised
Retro Rabbit — pros
- + Genuine Slack-first workflow — capture notes via /retro during the sprint, not just at retro time
- + Reduces recency bias by collecting feedback continuously, not in a 5-minute silent write
- + Simple, opinionated UX with drag/drop grouping and dot voting
- + CarrotIQ AI handles grouping, action items and summaries on the Pro AI plan
- + Per-team flat pricing scales cleanly for small squads
Retro Rabbit — cons
- − Slack is the only chat/issue-tracker integration — no Jira, Teams, Confluence, GitHub, Linear or Azure DevOps
- − No health checks, team radars or longitudinal trend reporting
- − No org-level dashboards, cross-team rollups or action kanban
- − Enterprise controls are thin: SSO is Enterprise-tier only, no SCIM, no audit logs, no documented GDPR posture
- − Per-team flat pricing — 3 teams of 8 lands at $90/mo on the Starter tier