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).
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RetroTool
3.2Anonymous 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 3.6 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).
RetroTool scores 3.2 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, open platform and enterprise-grade. RetroTool leads on ease of use and value.
Across our eight scoring dimensions, NimbleRetro edges ahead with an overall score of 3.6. 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 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 | Anonymous boards; unlimited cards, columns, action points and participants; 3 basic templates; secret voting, dot-vote limits, timer, grouping, action points; Markdown export; 12-month retention |
| Starting price | $10/user/mo (Nimble Team tier, USD; standalone NimbleRetro is quote-only) | $10/team/mo ($100/team/yr billed annually) |
| Est. 3 teams × 8 people | $240/mo (24 users x $10/user/mo Nimble Team tier); standalone NimbleRetro is quote-only | $30/mo (Individual — 3 teams x $10/team, unlimited members per team; $25/mo billed annually) |
| Enterprise | Yes | No |
| Founded | 2002 | — |
| HQ | Cupertino, CA, United States | Poland |
| Data residency | — | — |
| Languages | English only | English only |
| Export formats | — | Markdown · Confluence |
| Features | 16 | 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 | ✓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 | ✓note | — |
| GDPR | ✓ | ✓note |
| SSO / SAML | ✓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)
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, 15%+ off annually) with <em>unlimited members per team</em>, not per-seat
RetroTool — cons
- − <strong>Apparently dormant</strong>: blog stopped in March 2022, no changelog or release notes, legal docs unchanged since August 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
- − Most templates, image cards, named participants, private invite-only boards and zero-knowledge encryption are all behind paid tiers
- − Not SOC 2; no SSO/SCIM/audit logs for enterprise buyers
Keep comparing
Other NimbleRetro comparisons
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Not sure which to pick? Read our guide on how to choose a retrospective tool.