NimbleRetro
3.0Time-boxed retros with 5-Why root cause analysis
NimbleRetro is the retrospective module inside NimbleWork's broader Nimble agile platform. It runs structured, time-bound retros through Ideate, Group, Vote, Discuss, and Feedback stages, with anonymous input, action item tracking, and a 5-Why root cause workflow. Mobile apps for iOS and Android complement the web product, and action items convert directly into Nimble workitems.
Full review →
RetroTool
3.5Anonymous online retrospectives, no login required
RetroTool is a low-friction online retrospective board built by NY/Poland software agency u2i as a side project. Free anonymous retros run from a unique URL with no signup; paid tiers add private boards, team management and longer retention. The product still works, but the site shows no shipped activity in years.
Full review →Summary
NimbleRetro scores 3.0 overall and is best for small agile teams that want a no-frills retro with built-in root cause analysis and a mobile companion app, especially teams already using the wider NimbleWork (SwiftKanban / Nimble) suite. It offers paid plans from $7/user/mo.
RetroTool scores 3.5 overall and is best for small or ad-hoc teams who want a free, no-signup retro board with secret voting and a few standard templates — provided you're comfortable using a tool that hasn't shipped visible updates in years. It offers a free tier.
NimbleRetro leads on integrations and enterprise-grade. RetroTool leads on ease of use and value.
Across our seven scoring dimensions, RetroTool edges ahead with an overall score of 3.5. That said, the right pick depends on your team — see the dimension-by-dimension breakdown below.
Scores compared
| Detail | NimbleRetro | RetroTool |
|---|---|---|
| Category | Retrospectives | Retrospectives |
| Team size | Small | Small |
| Free tier | No | Yes |
| Free limit | Free trial only; no permanent free tier publicly disclosed for the retro module | Anonymous boards, unlimited cards, columns, action points and participants; 12-month retention; basic facilitation |
| Starting price | $7/user/mo | $10/mo |
| Est. 3 teams × 8 people | Quote-only — contact sales | $30/mo |
| Enterprise | Yes | No |
| Founded | — | — |
| HQ | Bengaluru, India | Poland |
| Data residency | — | — |
| Languages | English only | English only |
| Features | 13 | 18 |
| Integrations | 2 | 0 |
Feature & integration comparison
Side-by-side checklist across features, integrations and security. Hover a note for details.
| Capability | NimbleRetro | RetroTool |
|---|---|---|
| Features | ||
| AI Summaries | — | — |
| AI grouping/clustering | — | — |
| AI action items | — | — |
| Action tracking | ✓ | ✓ |
| Team Insights | — | — |
| Polling | ✓ | — |
| Action dashboard | ✓ note | ✓ |
| Custom templates | ✓ | ✓ note |
| Anonymous input | ✓ | ✓ note |
| Independent voting | — | ✓ |
| Async mode | — | — |
| Agile Estimations | — | — |
| Health Checks | — | — |
| Team Kudos | — | — |
| Whiteboard | — | — |
| Integrations | ||
| Asana | — | — |
| Azure DevOps | — | — |
| Basecamp | — | — |
| ClickUp | — | — |
| Confluence | — | — |
| GitHub | — | — |
| GitLab | — | — |
| Jira | — | — |
| Linear | — | — |
| Microsoft Teams | ✓ note | — |
| Monday.com | — | — |
| Notion | — | — |
| Shortcut | — | — |
| Slack | ✓ note | — |
| Trello | — | — |
| Security & Privacy | ||
| SOC 2 | — | — |
| GDPR | ✓ | ✓ note |
| SSO / SAML | — | — |
| SCIM provisioning | — | — |
| ISO 27001 | — | — |
| On-premises | — | — |
| Public API | ✓ note | — |
| Webhooks | ✓ note | — |
NimbleRetro — pros
- + Structured 5-Why root cause workflow built into the retro flow
- + Anonymous input and time-bound stages keep retros focused
- + Native iOS and Android apps for mobile participation
- + GDPR compliant; sits under NimbleWork's ISO 27001 / SOC umbrella at the platform level
NimbleRetro — cons
- − Only four templates with limited customisation of stages
- − No SSO/SAML, SCIM, or SOC 2 Type 2 attestation specific to the retro product
- − No retro-specific AI (clustering, summaries, sentiment) despite NimbleWork marketing the wider platform as AI-powered
- − Thin direct-integration story for the agile stack — no documented Jira, GitHub, Linear, or Azure DevOps hooks for the retro module
- − Pricing not transparently published; demo-gated
RetroTool — pros
- + Genuinely free anonymous retros with no account required
- + Three-click setup — unique URL, share, run
- + Zero-knowledge encryption with custom passwords on Company plan
- + Per-team flat pricing ($10 or $20/team/mo) rather than per-seat
RetroTool — cons
- − <strong>Apparently dormant</strong>: no blog, changelog or release notes; legal docs last updated 2020
- − No native integrations with Jira, Slack, Teams or any agile-stack tool
- − No AI features (clustering, summary, action extraction, sentiment)
- − No health checks, recurring retros, or cross-team reporting
- − Private invite-only boards and zero-knowledge encryption locked behind paid tiers
- − Not SOC 2; no SSO/SCIM/audit logs for enterprise buyers