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 →
RetroFlow
3.7Your team's favourite way to retro
RetroFlow is a free, no-signup retrospective board built by solo developer Prashant Meena, with colourful boards, real-time collaboration, 7 ready-made templates, anonymous feedback, dot voting and action items. Participants join a shared link in one click with no account; the whole product is free with no paid tiers or locked features.
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.
RetroFlow scores 3.7 overall and is best for small or ad-hoc teams who want a genuinely free, zero-friction retro board they can share with one link — no signup, no payment and no setup, accepting that there are no integrations, AI or enterprise controls. It offers a free tier.
Ludi leads on ease of use, retro toolkit, fun factor, AI & insights, integrations and enterprise-grade. RetroFlow leads on value.
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 | RetroFlow |
|---|---|---|
| Category | Retrospectives | Retrospectives |
| Team size | Small | Small |
| Free tier | No | Yes |
| Free limit | 30-day free trial; boards become read-only when the trial expires | Everything is free — all 7 templates, real-time collaboration, anonymous feedback, dot voting and action items, with no account required to join a board |
| Starting price | $4/user/mo billed annually | Free |
| Est. 3 teams × 8 people | $96/mo billed annually | Free (no paid tier) |
| Enterprise | Yes | No |
| Founded | 2020 | — |
| HQ | UK | — |
| Data residency | European Union | — |
| Languages | English only | English only |
| Features | 33 | 7 |
| Integrations | 1 | 0 |
Feature & integration comparison
Side-by-side checklist across features, integrations and security. Hover a note for details.
| Capability | Ludi | RetroFlow |
|---|---|---|
| Features | ||
| AI Summaries | — | — |
| AI grouping/clustering | ✓note | — |
| AI action items | — | — |
| Action tracking | ✓ | ✓ |
| Team Insights | — | — |
| Polling | ✓note | — |
| Action dashboard | — | — |
| Custom templates | ✓ | ✓note |
| Anonymous input | ✓note | ✓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 | — |
| GDPR | ✓ | — |
| SSO / SAML | ✓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
RetroFlow — pros
- + Genuinely free with no paid tiers, no paywalled features and no account required to join a board
- + Anonymous feedback — participants contribute with no signup, email or PII collected
- + Three-step setup — pick a template, share the link, run the retro; participants join with one click
- + Seven ready-made retrospective formats covering the common reflection patterns
- + Real-time collaboration with live notes, dot voting and shared action items
- + Light personalisation — custom column names, 2-6 columns, 7 colour palettes and 48 emojis
RetroFlow — cons
- − No integrations at all — nothing pushes to Jira, Linear, Slack, Teams or any agile-stack tool
- − No AI features (clustering, summary, action extraction or sentiment)
- − No health checks, recurring retros, mood tracking or cross-team reporting
- − No enterprise security or compliance — no SOC 2, SSO, SCIM or audit logs; the privacy policy confirms only HTTPS and Vercel hosting with Google Analytics/PostHog analytics
- − Built and run by a solo developer (Prashant Meena) with no support team or SLA — fine for ad-hoc use, but unsuitable for enterprise procurement
- − Boards are private only by unguessable URL — there are no accounts, so no real access control, invite management or board history