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.
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LetRetro
5.6The retro tool that thinks with your team
LetRetro is a young, AI-forward retrospective platform built around retros wired into sprint data. Its headline differentiator is now shipped rather than promised: an official MCP server lets Claude, Cursor, VS Code and other AI clients read and drive boards directly. Real-time collaborative boards, AI-generated retro documentation, sentiment/trend analysis and a team health checker sit on flat (pooled-seat) pricing rather than per-user, with Jira, GitHub, GitLab and Linear card linking to close the loop.
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.
LetRetro scores 5.6 overall and is best for developer-leaning agile teams and startups that want AI-assisted retros wired into their sprint data and dev stack — Jira, GitHub, GitLab and Linear card linking, plus an official MCP server their AI clients can drive — with health and sentiment tracking and no enterprise overhead. It offers a free tier.
IdeaBoardz leads on open platform. LetRetro leads on ease of use, retro toolkit, fun factor, AI & insights, integrations and enterprise-grade.
Across our eight scoring dimensions, LetRetro 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 | LetRetro |
|---|---|---|
| Category | Retrospectives | Retrospectives |
| Team size | Small | Small |
| Free tier | Yes | Yes |
| Free limit | Fully free, no paid tier | 3 boards, 1 team, 20 pooled seats, 2 AI docs/mo, 5 exports/mo, community support |
| Starting price | Free | $15/mo (Pro, flat) |
| Est. 3 teams × 8 people | Free (no paid tier) | $15/mo (Pro — flat plan covers unlimited teams within its 200 pooled-seat cap; 24 users fits) |
| Enterprise | No | Yes |
| Founded | 2010 | 2025 |
| HQ | Pune, India | Bengaluru, India |
| Data residency | — | — |
| Languages | English only | English only |
| Export formats | PDF · Excel | — |
| Features | 9 | 21 |
| Integrations | 0 | 6 |
Feature & integration comparison
Side-by-side checklist across features, integrations and security. Hover a note for details.
| Capability | IdeaBoardz | LetRetro |
|---|---|---|
| Features | ||
| AI Summaries | — | ✓ |
| AI grouping/clustering | — | — |
| AI action items | — | ✓note |
| Action tracking | — | ✓ |
| Team Insights | — | ✓note |
| Polling | — | ✓note |
| Action dashboard | — | ✓note |
| Custom templates | ✓note | ✓note |
| Anonymous input | ✓ | ✓ |
| Independent voting | ✓ | ✓ |
| Async mode | ✓ | — |
| Agile Estimations | — | — |
| Health Checks | — | ✓note |
| Team Kudos | — | — |
| Whiteboard | — | — |
| Integrations | ||
| Asana | — | — |
| Azure DevOps | — | — |
| Basecamp | — | — |
| ClickUp | — | — |
| Confluence | — | — |
| GitHub | — | ✓ |
| GitLab | — | ✓ |
| Jira | — | ✓ |
| Linear | — | ✓ |
| Microsoft Teams | — | — |
| Monday.com | — | — |
| Notion | — | ✓ |
| Shortcut | — | — |
| Slack | — | ✓note |
| Trello | — | — |
| Security & Privacy | ||
| SOC 2 | — | — |
| GDPR | — | ✓note |
| SSO / SAML | — | ✓note |
| SCIM provisioning | — | — |
| ISO 27001 | — | — |
| On-premises | — | ✓note |
| Public API | ✓note | — |
| Webhooks | — | — |
| MCP server | — | ✓note |
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
LetRetro — pros
- + Flat pricing — $15/mo Pro covers unlimited boards and teams within a 200 pooled-seat cap, so a growing org isn't billed per head
- + AI is a genuine focus, not a bolt-on: retro-doc generation, sentiment/trend analysis, key takeaways and improvement suggestions that cut the post-retro write-up burden
- + An <strong>official MCP server actually shipped</strong> in July 2026 — one-command install, 17 tools, 11 clients — so Claude, Cursor or VS Code can read boards and file cards without a bespoke script
- + Dev-stack card linking is real and reasonably deep: Jira, GitHub, GitLab and Linear, with inline issue editing, comments and one card linked across several providers at once
- + Built-in team health checker and sentiment-over-time trend dashboards — longitudinal signal many cheap retro tools skip
LetRetro — cons
- − Thin enterprise story: Google and Microsoft sign-in but no SAML SSO, SCIM only 'in progress', no audit-log access, no LetRetro-held SOC 2 or ISO 27001; on-premise and SLA sit behind a quote-only Enterprise tier
- − Solo-founder micro-SaaS — the team page lists one person (Dhanush Kandhan, Bengaluru) still recruiting, and independent coverage is almost nil (9 Product Hunt upvotes, 2 reviews) — a real durability risk for procurement
- − The vendor's own pages contradict each other on connectors: the homepage badges Jira, Confluence and Asana 'Coming Soon' while the integrations page and comparison FAQ list all three as live. Verify anything you're depending on
- − Retro toolkit lacks facilitator staples: no confirmed timer, recurring/scheduled retros, parking lot, team agreements or async-first mode — it's built around live, real-time sessions
- − No public REST API and no webhooks, and the export formats behind the metered '5 exports/mo' limit aren't documented anywhere — MCP is the only programmatic route in
Keep comparing
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Not sure which to pick? Read our guide on how to choose a retrospective tool.