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 renamed twice by its maker, Deqo Software Limited: to Ludi on 4 August 2025, then to Spreo on 1 July 2026 after a trademark cease-and-desist. The metroretro.io domain now 301-redirects straight to spreo.io. If you are searching for Metro Retro, the product you want is Spreo; the original Metro Retro brand and domain are no longer maintained.
Full review →
Anonymous online retrospectives, no login required
RetroTool is a low-friction online retrospective board built by u2i, a ~60-person NY/Kraków software agency, as an internal tool it later opened up. Free anonymous retros run from a unique URL with no signup; paid tiers add private boards, team management, configurable retention and zero-knowledge encryption. The product works and is still used daily, but nothing has shipped visibly since 2024.
Full review →Metro Retro scores 3.0 overall and is best for searchers who remember Metro Retro and need to know where it went — the product now ships as <strong>Spreo</strong>. Go there, or to a dedicated retro platform, instead. It offers custom pricing.
RetroTool scores 3.2 overall and is best for small or ad-hoc teams who want a free, no-signup retro board with private drafting, secret voting and a dozen standard templates — provided you're comfortable running on a tool whose last visible build is dated May 2024. It offers a free tier.
Metro Retro leads on fun factor, integrations, open platform and enterprise-grade. RetroTool leads on ease of use and value.
Across our eight scoring dimensions, RetroTool edges ahead with an overall score of 3.2. That said, the right pick depends on your team — see the dimension-by-dimension breakdown below.
| Detail | Metro Retro | RetroTool |
|---|---|---|
| Category | Whiteboard | Retrospectives |
| Team size | Small | Small |
| Free tier | No | Yes |
| Free limit | Anonymous boards; unlimited cards, columns, action points and participants; 3 basic templates; private sections, secret voting, dot-vote limits, timer, grouping, action points with owner and due date; Markdown export; 12-month retention. A free registered 'Participant' account (not advertised on the plans page) adds access to private retros and cross-device drafts | |
| Starting price | Free | $10/team/mo ($100/team/yr billed annually) |
| Est. 3 teams × 8 people | N/A — brand retired; see the Spreo listing | $30/mo (Individual — 3 teams x $10/team/mo, unlimited members per team; $300/yr = $25/mo billed annually) |
| Enterprise | No | No |
| Founded | — | — |
| HQ | United Kingdom | Poland |
| Data residency | — | — |
| Languages | English only | English only |
| Export formats | PDF · CSV · HTML · Markdown · JSON · Jira | Markdown · Confluence |
| Features | 7 | 19 |
| Integrations | 0 | 0 |
Side-by-side checklist across features, integrations and security. Hover a note for details.
| Capability | Metro Retro | RetroTool |
|---|---|---|
| Features | ||
| Custom templates | — | ✓note |
| Anonymous input | — | ✓note |
| Health Checks | — | — |
| Action tracking | — | ✓ |
| Async mode | — | — |
| Whiteboard | ✓ | — |
| Independent voting | ✓ | ✓ |
| Polling | — | — |
| Icebreaker games | — | — |
| Agile Estimations | — | — |
| Team Kudos | — | — |
| AI grouping/clustering | — | — |
| AI action items | — | — |
| AI Summaries | — | — |
| Team Insights | — | — |
| In-meeting AI assistant | — | — |
| Action dashboard | — | ✓note |
| Integrations | ||
| Asana | — | — |
| Azure DevOps | — | — |
| Basecamp | — | — |
| ClickUp | — | — |
| Confluence | — | — |
| GitHub | — | — |
| GitLab | — | — |
| Jira | — | — |
| Linear | — | — |
| Microsoft Teams | — | — |
| Monday.com | — | — |
| Notion | — | — |
| Shortcut | — | — |
| Slack | — | — |
| Trello | — | — |
| Security & Privacy | ||
| SOC 2 | — | — |
| GDPR | — | ✓note |
| SSO / SAML | — | — |
| SCIM provisioning | — | — |
| ISO 27001 | — | — |
| On-premises | — | — |
| Public API | — | — |
| Webhooks | — | — |
| MCP server | — | — |
Not sure which to pick? Read our guide on how to choose a retrospective tool.