NimbleRetro
3.6Time-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 Icebreaker, Ideation, Grouping, Voting, and Root Cause Analysis stages, with anonymous input, action item tracking, and a 5-Why root cause workflow. Native iOS and Android apps complement the web product, and action items convert directly into Nimble workitems (user stories and cards).
Full review →
Retro Rabbit
4.4Slack-first retrospectives with async note capture
Retro Rabbit is a Slack-native retrospective tool that lets teams capture notes throughout the sprint from Slack or the web app, then runs the retro on a synced board with drag-and-drop grouping, voting and assignable action items. The CarrotIQ AI layer is gated to the Pro AI plan. No public changelog and no visible feature change since April 2025 — ask for a roadmap before committing.
Full review →Summary
NimbleRetro scores 3.6 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 $10/user/mo (Nimble Team tier, USD; standalone NimbleRetro is quote-only).
Retro Rabbit scores 4.4 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/team/mo.
NimbleRetro leads on open platform and enterprise-grade. Retro Rabbit leads on ease of use, retro toolkit, value, fun factor, AI & insights and integrations.
Across our eight scoring dimensions, Retro Rabbit edges ahead with an overall score of 4.4. That said, the right pick depends on your team — see the dimension-by-dimension breakdown below.
Scores compared
| Detail | NimbleRetro | Retro Rabbit |
|---|---|---|
| Category | Retrospectives | Retrospectives |
| Team size | Small | Small |
| Free tier | No | No |
| Free limit | Free trial only; no permanent free tier published for the retro module. A $0 Nimble suite plan (10 users / 10 projects) appears in a secondary table on the suite pricing page, but it does not list Retrospectives among its features | 14-day free trial, no credit card required |
| Starting price | $10/user/mo (Nimble Team tier, USD; standalone NimbleRetro is quote-only) | $30/team/mo |
| Est. 3 teams × 8 people | $240/mo (24 users x $10/user/mo Nimble Team tier); standalone NimbleRetro is quote-only | $90/mo |
| Enterprise | Yes | Yes |
| Founded | 2002 | — |
| HQ | Cupertino, CA, United States | Boston, United States |
| Data residency | — | — |
| Languages | English only | English only |
| Export formats | — | CSV · Excel · PDF |
| Features | 16 | 16 |
| Integrations | 2 | 1 |
Feature & integration comparison
Side-by-side checklist across features, integrations and security. Hover a note for details.
| Capability | NimbleRetro | Retro Rabbit |
|---|---|---|
| Features | ||
| AI Summaries | — | ✓note |
| AI grouping/clustering | — | ✓note |
| AI action items | — | ✓note |
| 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 | — | — |
| Linear | — | — |
| Microsoft Teams | ✓note | — |
| Monday.com | — | — |
| Notion | — | — |
| Shortcut | — | — |
| Slack | ✓note | ✓ |
| Trello | — | — |
| Security & Privacy | ||
| SOC 2 | ✓note | ✓note |
| GDPR | ✓ | — |
| SSO / SAML | ✓note | ✓note |
| SCIM provisioning | — | — |
| ISO 27001 | ✓note | — |
| On-premises | — | — |
| Public API | ✓note | — |
| Webhooks | ✓note | — |
| MCP server | — | — |
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
- + NimbleWork runs an annual SOC 2 Type II audit and an ISO/IEC 27001:2022 audit, with SAMLv2/ADFSv3 SSO at the platform level
- + Action items convert directly into Nimble work items, so follow-up lands in the same backlog the team already works from
NimbleRetro — cons
- − Only four templates, and custom templates cap out at four columns
- − No SCIM provisioning or audit logs documented; SSO and the SOC 2 / ISO 27001 attestations sit at the NimbleWork platform level, not the retro module
- − Comparison pages tick 'Generative AI' for NimbleRetro, but no retro AI (clustering, summaries, sentiment) is documented — NimbleWork's AI Agents are a separately licensed add-on aimed at Nimble cards and analytics
- − No documented export of a retro board in any format
- − Thin direct-integration story for the agile stack — no documented Jira, GitHub, Linear, or Azure DevOps hooks for the retro module
- − Participants are limited to members of the Nimble project the retro is created from
- − NimbleRetro's own pricing page is demo-gated; the only published rate card is the Nimble suite's ($10/user/mo Team, $26/user/mo Business)
Retro Rabbit — pros
- + Genuine Slack-first workflow — notes get captured in Slack throughout the sprint, not just at retro time
- + Reduces recency bias by collecting feedback continuously instead of in a 5-minute silent write
- + Simple, opinionated UX with drag-and-drop grouping and dot voting
- + CarrotIQ covers grouping, action-item suggestions and retro summaries on the $40/team/mo Pro AI plan
- + Flat per-team pricing with unlimited users, and CSV/XLSX/PDF export on every tier including Starter
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
- − No public API, webhooks or MCP server — data leaves only as a file export
- − Enterprise controls are thin: SSO is Enterprise-tier only, no SCIM, no audit logs, and the privacy policy carries no GDPR or CCPA commitments
Keep comparing
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Not sure which to pick? Read our guide on how to choose a retrospective tool.