Freedom251 › Online whiteboards
Limnu
What Limnu is
Limnu is an online whiteboard for sketching, sharing ideas, and collaborating in real time. Its open-ended boards support activities such as team brainstorming, tutoring, process flows, state diagrams, product prioritization, and storyboard reviews. Users can search, sort, and bulk-edit boards; Pro and Team plans include unlimited boards. Tutors can upload PDFs, JPEGs, PNGs, PowerPoint, Excel, and Word files, then use built-in video calls for up to eight participants. Teaching tools include Solo Draw, which lets students follow updates without editing, as well as pins and Leading to guide attention around a board. Team administrators can restrict sharing to their organization and manage access, sharing, and invitations. Limnu is available on web, iOS, and Android, with an API plan for embedding whiteboards in apps or websites. The Free plan costs nothing and includes 30 minutes of video call time. Pro is $5 a month, billed $50/year, and Team is $8 a month per team member, billed $80/year. A 14-day trial is available.
Who it suits
Limnu suits teams using shared visual boards for brainstorming, diagrams, or reviews, and tutors who need file uploads and video conferencing. Team administrators can use its sharing controls to manage board access.
What it does well
- Boards have no edge boundaries
- Tutors can upload common document and image formats
- Video conferencing supports up to eight participants
- Team plans include organization-level sharing controls
- Available on web, iOS, and Android
What to know first
- Free plan limits video calls to 30 minutes
- Slack integration is being upgraded and will be released again soon
Limits
The Free plan provides 14-day access to whiteboards, unlimited collaborators, collaborative or solo draw boards, limited administration and security controls, and 30 minutes of video conference time. Pro and Team include unlimited boards and video conferencing; Team adds team security controls.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free | 14-day whiteboard access · unlimited collaborators · collaborative or solo drawing · limited admin/security · 30 minutes video conferencing | Free |
| Pro | $5/month or $50/year (save $10) · unlimited boards · unlimited collaborators · private/collaborative boards · unlimited video conferencing | $5 a month |
| Team | $8/month per team member or $80/year (save $16) · unlimited boards and collaborators · team/private boards · team security controls · unlimited video conferencing | $8 a month |
| API | embedded whiteboards · no downloads · no Limnu registration or branding · Limnu-hosted sessions | On request |
| Enterprise | Team and Pro features · dedicated customer-success manager · personalized training and onboarding | On request |
As limnu.com lists them, read 15 Oct 2026. The maker's own page has the final word.
Getting started
- Open the Limnu website
- Choose the Free plan or start the 14-day trial
- Use Limnu on web, iOS, or Android
- Create a whiteboard for sketching or collaboration
- Invite collaborators or embed a board through the API
Verdict
Limnu brings open-ended boards together with teaching tools, real-time collaboration, and team sharing controls. The Free plan has a 30-minute video-call limit; Pro and Team list unlimited video conferencing time.
Questions
Does Limnu have a free plan?
Yes. The Free plan costs nothing and includes 14-day access to whiteboards.
How much do paid plans cost?
Pro costs $5 a month, billed $50/year. Team costs $8 a month per team member, billed $80/year.
Which platforms does Limnu support?
Limnu supports web, iOS, Android, and an API.
Can tutors upload teaching materials?
Yes. Tutors can upload PDFs, JPEGs, PNGs, PowerPoint, Excel, and Word files.
Does Limnu offer video conferencing?
Yes. Free includes 30 minutes, while Pro and Team list unlimited video conferencing time.
Facts from Limnu's own pages
- API access
- API keys and endpoints are issued manually by Limnu support to team accounts, and API calls can create additional charges. · limnu.com, 15 Oct 2026
- API capability
- The external API embeds Limnu whiteboards in third-party apps and exposes user and board functions including create, list, copy, rename, delete and image upload. · limnu.com, 15 Oct 2026
- API commercial model
- API access requires a signed contract, with nominal development-period fees and usage fees after launch. · limnu.com, 15 Oct 2026
- API protocol
- API v1 functions use POST requests with JSON bodies and JSON responses containing a boolean success field. · limnu.com, 15 Oct 2026
- App system requirements
- The App Store lists iOS/iPadOS 9.2 or later and macOS 11 or later on Apple silicon Macs. · apps.apple.com, 15 Oct 2026
- Board organization
- Board organization supports searching, sorting and bulk editing of boards. · limnu.com, 15 Oct 2026
- Canvas and boards
- Boards have no edge boundaries, and Pro and Team plans include unlimited boards. · limnu.com, 8 Oct 2026
- Company
- The About page identifies Andrew Kunz as Limnu’s CEO and founder. · limnu.com, 8 Oct 2026
- Company size and HQ
- LinkedIn lists Limnu as a privately held software company with 2–10 employees headquartered in San Mateo, California. · pl.linkedin.com, 15 Oct 2026
- Content import
- The tutoring product page lists support for PDFs, JPEG, PNG, PowerPoint, Excel and Word files. · limnu.com, 15 Oct 2026
- Documentation depth
- The API documentation lists endpoints for users, boards, usage, image uploads and menu controls, but says the API is still in active development. · limnu.com, 15 Oct 2026
- Education features
- Tutors can upload PDFs, JPEGs, PNGs, PowerPoint, Excel, and Word files, and use built-in video conferencing for up to eight participants. · limnu.com, 8 Oct 2026
- Founded
- Limnu says it was founded in 2015 by two former film-studio employees. · limnu.com, 15 Oct 2026
- GetApp feature ratings
- GetApp lists collaboration tools and discussions/forums at 5.0, while video conferencing is rated 1.0 from one review. · getapp.com, 15 Oct 2026
- Headquarters
- San Mateo, California, United States · limnu.com, 28 Sept 2026
- Infinite canvas
- Boards have no edge boundaries and include an indicator to help users locate off-screen work. · limnu.com, 15 Oct 2026
- Integrations
- A Slack integration can create a shared Limnu board from a Slack slash command. · limnu.com, 15 Oct 2026
- Limit
- The Free plan includes 30 minutes of video conference call time; Pro and Team list unlimited video conferencing time. · limnu.com, 8 Oct 2026
- Limit: feature gaps
- A Capterra reviewer praised the whiteboard but identified absent screen sharing as a near deal-breaker for tutoring. · capterra.com, 15 Oct 2026
- Limit: iPad usability
- Apple App Store reviews complain about absent palm rejection, accidental zooming, distorted handwriting and sign-in problems. · apps.apple.com, 15 Oct 2026
- Limit: missing export and tools
- G2 reviewers report limited export quality, no rotate tool, limited brush styles/palette and small label text. · g2.com, 15 Oct 2026
- Limit: screen sharing
- G2 and Capterra reviewers note that Limnu lacks desktop screen sharing and may require a separate conferencing tool. · g2.com, 15 Oct 2026
- Limit: subscription cancellation
- The sole Trustpilot reviewer reported being unable to cancel after leaving a job and said support did not respond. · trustpilot.com, 15 Oct 2026
- Organization
- Users can search, sort, and bulk-edit whiteboards. · limnu.com, 8 Oct 2026
Where Limnu stands on Freedom251
- Online whiteboards#8 of 58
- Online Whiteboard Tools#14 of 56