IdeaBoardz
2.9Free shared brainstorming boards
IdeaBoardz is a long-standing free brainstorming and retrospective board: pick 1-10 sections, name them yourself, share the URL, add ideas anonymously, upvote, and export to PDF or Excel. The app still works and is still in daily use, but development stopped years ago — the public source repository's last feature commits date to April 2020 and the Terms have not been revised since.
Full review →
Reetro
6.0Fun, easy and AI-powered online retrospectives
Reetro is a lightweight retrospective tool with a genuinely free tier, a scheduler that auto-creates recurring boards, and AI-powered paid tiers covering meeting summaries, sentiment analysis, AI card grouping, customizable health checks and an action tracker. SSO, 2FA and audit logs start on the $10/team Pro plan rather than an enterprise tier. ISO 27001 is claimed at the vendor level; SOC 2 is described as compliance on SOC 2-certified infrastructure rather than a published Reetro-level Type 2 audit.
Full review →Summary
IdeaBoardz scores 2.9 overall and is best for throwaway retros and quick distributed brainstorms when nobody wants to sign up. It offers a free tier.
Reetro scores 6.0 overall and is best for small to mid-sized agile teams who want a low-cost, easy retro board with AI summaries, customizable health checks, SSO from the $10/team tier and Jira/Azure DevOps export — with a flat-rate org-wide tier if you outgrow per-team pricing. It offers a free tier.
IdeaBoardz leads on open platform. Reetro leads on ease of use, retro toolkit, fun factor, AI & insights, integrations and enterprise-grade.
Across our eight scoring dimensions, Reetro edges ahead with an overall score of 6.0. That said, the right pick depends on your team — see the dimension-by-dimension breakdown below.
Scores compared
| Detail | IdeaBoardz | Reetro |
|---|---|---|
| Category | Retrospectives | Retrospectives |
| Team size | Small | Small |
| Free tier | Yes | Yes |
| Free limit | Fully free, no paid tier | 3 teams, 9 members per team, 10 active boards per team, 4 columns, 50 guests, 1 health check/month |
| Starting price | Free | $10/team/mo |
| Est. 3 teams × 8 people | Free (no paid tier) | Free (within free tier) |
| Enterprise | No | Yes |
| Founded | 2010 | 2019 |
| HQ | Pune, India | Copenhagen, Denmark |
| Data residency | — | — |
| Languages | English only | English only |
| Export formats | PDF · Excel | CSV · Word · Email · Jira · Confluence |
| Features | 9 | 41 |
| Integrations | 0 | 6 |
Feature & integration comparison
Side-by-side checklist across features, integrations and security. Hover a note for details.
| Capability | IdeaBoardz | Reetro |
|---|---|---|
| Features | ||
| AI Summaries | — | ✓note |
| AI grouping/clustering | — | ✓note |
| AI action items | — | — |
| Action tracking | — | ✓ |
| Team Insights | — | ✓ |
| Polling | — | ✓note |
| Action dashboard | — | ✓ |
| Custom templates | ✓note | ✓note |
| Anonymous input | ✓ | ✓note |
| Independent voting | ✓ | ✓note |
| Async mode | ✓ | ✓ |
| Agile Estimations | — | — |
| Health Checks | — | ✓ |
| Team Kudos | — | ✓note |
| Whiteboard | — | ✓note |
| Integrations | ||
| Asana | — | — |
| Azure DevOps | — | ✓note |
| Basecamp | — | — |
| ClickUp | — | — |
| Confluence | — | ✓note |
| GitHub | — | — |
| GitLab | — | — |
| Jira | — | ✓note |
| Linear | — | — |
| Microsoft Teams | — | ✓note |
| Monday.com | — | — |
| Notion | — | — |
| Shortcut | — | — |
| Slack | — | ✓note |
| Trello | — | ✓note |
| Security & Privacy | ||
| SOC 2 | — | ✓note |
| GDPR | — | ✓ |
| SSO / SAML | — | ✓note |
| SCIM provisioning | — | — |
| ISO 27001 | — | ✓ |
| On-premises | — | ✓note |
| Public API | ✓note | — |
| Webhooks | — | — |
| MCP server | — | — |
IdeaBoardz — pros
- + Genuinely free — no paywall, no paid tier, no trial clock
- + No signup required to participate — just share the URL
- + 1-10 free-text sections build Start/Stop/Continue, 4Ls or Six Thinking Hats by hand
- + Drag one sticky onto another to merge them; the votes are added together
- + PDF and Excel export on every board, plus a working phone view
IdeaBoardz — cons
- − No templates at all — the only format choice is how many sections you want
- − No timer, no phases, no action items, no grouping beyond merging two stickies into one
- − Unlimited anonymous upvotes with no per-person vote budget
- − Zero integrations, no SSO, no SOC 2 and no published privacy policy — the URL is the only access control
- − No product work since April 2020; support is a Gmail address and a Twitter handle
Reetro — pros
- + Genuinely free tier, no credit card — 3 teams, 9 members and 50 guests covers a 24-person org
- + <strong>SSO (Google, OneLogin, Azure AD, Okta), 2FA and audit logs start on the $10/team Pro plan</strong>, not an enterprise tier
- + Scheduler auto-creates the next retro board weekly or every 2–4 weeks with layout and settings pre-applied
- + AI meeting summaries, sentiment analysis and automatic card grouping on paid, alongside customizable health checks, polls and a happiness index
- + Trust center is actively maintained — policy pack, sub-processor list and an AI governance portal all published or refreshed in 2026
Reetro — cons
- − Free plan capped at 3 teams, 9 members, 10 active boards and 4 columns, with both anonymity and multi-voting paid-only
- − Pro Unlimited's own marketing is self-contradictory — the FAQ and plan table call it flat org-wide $49/mo while the plan card badge says PER TEAM with a 180-member cap
- − Team, comparative and monthly reporting are ticked on the paid columns yet tagged <em>coming soon</em> in the same table — verify the reporting story before you buy
- − On-premises is sold as a Pro Unlimited feature but the tooltip on that plan card says 'coming soon'
- − No published Reetro-level SOC 2 Type 2 audit (their trust center lists SOC 2 as 'compliant', not certified) and no SCIM
- − No public API, webhooks or MCP server; no GitHub/Linear; help-doc footers still read 2020–2021 and there's no public changelog
Keep comparing
Other IdeaBoardz comparisons
Other Reetro comparisons
Not sure which to pick? Read our guide on how to choose a retrospective tool.