IdeaBoardz
3.6Free shared brainstorming boards
IdeaBoardz is a long-standing free brainstorming and retrospective board where anyone can spin up a shared URL, add ideas in customisable sections, vote, and export to PDF or Excel. The site is still online and the app still works, but the product appears to be in maintenance mode at best — Terms were last updated in April 2020 and there is no blog, changelog or roadmap to suggest active development.
Full review →
Retro Rabbit
5.6Slack-first retrospectives with async note capture
Retro Rabbit is a Slack-native retrospective tool that lets teams capture notes throughout the sprint with a /retro command, then runs the retro on a synced web board with voting, action items and an optional CarrotIQ AI assistant. <em>Public update cadence appears slow — verify the product is still actively maintained before committing.</em>
Full review →Summary
IdeaBoardz scores 3.6 overall and is best for throwaway retros and quick distributed brainstorms when nobody wants to sign up. It offers a free tier.
Retro Rabbit scores 5.6 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/mo.
IdeaBoardz leads on value. Retro Rabbit leads on ease of use, retro toolkit, fun factor, AI & insights, integrations and enterprise-grade.
Across our seven scoring dimensions, Retro Rabbit edges ahead with an overall score of 5.6. That said, the right pick depends on your team — see the dimension-by-dimension breakdown below.
Scores compared
| Detail | IdeaBoardz | Retro Rabbit |
|---|---|---|
| Category | Retrospectives | Retrospectives |
| Team size | Small | Small |
| Free tier | Yes | No |
| Free limit | Fully free, no paid tier | 14-day free trial, no credit card required |
| Starting price | Free | $30/mo |
| Est. 3 teams × 8 people | Custom | $30/mo |
| Enterprise | No | Yes |
| Founded | 2012 | — |
| HQ | Pune, India | United States |
| Features | 6 | 17 |
| Integrations | 0 | 1 |
Feature & integration comparison
Side-by-side checklist across features, integrations and security. Hover a note for details.
| Capability | IdeaBoardz | Retro Rabbit |
|---|---|---|
| Features | ||
| AI Summaries | — | ✓ note |
| AI grouping/clustering | — | ✓ note |
| AI action items | — | ✓ note |
| Action tracking | — | ✓ |
| Team Insights | — | — |
| Polling | — | — |
| Action dashboard | — | — |
| Custom templates | ✓ note | ✓ |
| Anonymous input | ✓ | ✓ |
| Independent voting | ✓ | ✓ |
| Async mode | ✓ | ✓ |
| Agile Estimations | — | — |
| Health Checks | — | — |
| Team Kudos | — | — |
| Whiteboard | — | — |
| Integrations | ||
| Asana | — | — |
| Azure DevOps | — | — |
| Confluence | — | — |
| GitHub | — | — |
| Jira | — | — |
| Linear | — | — |
| Microsoft Teams | — | — |
| Slack | — | ✓ |
| Trello | — | — |
| Security & Privacy | ||
| SOC 2 | — | ✓ note |
| GDPR | — | — |
| SSO/SAML/SCIM | — | ✓ note |
| ISO 27001 | — | — |
| On-premises | — | — |
| Data residency (US/EU) | — | — |
IdeaBoardz — Pros
- + Genuinely free, no paywall, no paid tier
- + No signup required to participate — just share a URL
- + 1-10 customisable sections cover most retro formats (Start/Stop/Continue, 4Ls, etc.)
- + PDF and Excel export built in
- + Voting and async input out of the box
IdeaBoardz — Cons
- − UI is unchanged from the early 2010s and shows it
- − No timer, no facilitation phases, no drag-and-drop grouping
- − Zero integrations with the agile stack (Jira, Slack, Teams, Confluence, etc.)
- − No prebuilt templates, no health checks, no AI features
- − Boards are public-by-URL with no SSO, SOC 2, or stated privacy controls
- − Apparently in maintenance mode — Terms last updated April 2020, no changelog or blog
Retro Rabbit — Pros
- + Genuine Slack-first workflow — capture notes via /retro during the sprint, not just at retro time
- + Reduces recency bias by collecting feedback continuously, not in a 5-minute silent write
- + Simple, opinionated UX with drag/drop grouping and dot voting
- + CarrotIQ AI handles grouping, action items and summaries on the Pro AI plan
- + Per-team flat pricing scales cleanly for small squads
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
- − Enterprise controls are thin: SSO is Enterprise-tier only, no SCIM, no audit logs, no documented GDPR posture
- − Per-team (not per-user) pricing can get expensive at scale across many small teams