Limnu

Spec sheet

What it does

Limnu is a browser-based collaborative whiteboard for sketching, brainstorming and remote teamwork.Read 15 Oct 2026 · limnu.com

Product

Limnu is an online whiteboard for sketching, sharing, brainstorming, and real-time collaboration.Read 8 Oct 2026 · limnu.com

Platforms

Limnu works in current web browsers and has an iOS app.Read 8 Oct 2026 · limnu.com

Integrations

A Slack integration can create a shared Limnu board from a Slack slash command.Read 15 Oct 2026 · limnu.com

Support

Limnu offers email support at [email protected] and a support form.Read 8 Oct 2026 · limnu.com

Headquarters

San Mateo, California, United StatesRead 28 Sep 2026 · limnu.com

Founded

Limnu says it was founded in 2015 by two former film-studio employees.Read 15 Oct 2026 · limnu.com

Company

The About page identifies Andrew Kunz as Limnu’s CEO and founder.Read 8 Oct 2026 · limnu.com

API access

API keys and endpoints are issued manually by Limnu support to team accounts, and API calls can create additional charges.Read 15 Oct 2026 · limnu.com

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.Read 15 Oct 2026 · limnu.com

API commercial model

API access requires a signed contract, with nominal development-period fees and usage fees after launch.Read 15 Oct 2026 · limnu.com

API protocol

API v1 functions use POST requests with JSON bodies and JSON responses containing a boolean success field.Read 15 Oct 2026 · limnu.com

App system requirements

The App Store lists iOS/iPadOS 9.2 or later and macOS 11 or later on Apple silicon Macs.Read 15 Oct 2026 · apps.apple.com

Board organization

Board organization supports searching, sorting and bulk editing of boards.Read 15 Oct 2026 · limnu.com

Canvas and boards

Boards have no edge boundaries, and Pro and Team plans include unlimited boards.Read 8 Oct 2026 · limnu.com

Company size and HQ

LinkedIn lists Limnu as a privately held software company with 2–10 employees headquartered in San Mateo, California.Read 15 Oct 2026 · pl.linkedin.com

Content import

The tutoring product page lists support for PDFs, JPEG, PNG, PowerPoint, Excel and Word files.Read 15 Oct 2026 · limnu.com

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.Read 15 Oct 2026 · limnu.com

Education features

Tutors can upload PDFs, JPEGs, PNGs, PowerPoint, Excel, and Word files, and use built-in video conferencing for up to eight participants.Read 8 Oct 2026 · limnu.com

GetApp feature ratings

GetApp lists collaboration tools and discussions/forums at 5.0, while video conferencing is rated 1.0 from one review.Read 15 Oct 2026 · getapp.com

Infinite canvas

Boards have no edge boundaries and include an indicator to help users locate off-screen work.Read 15 Oct 2026 · limnu.com

Limit

The Free plan includes 30 minutes of video conference call time; Pro and Team list unlimited video conferencing time.Read 8 Oct 2026 · limnu.com

Limit: feature gaps

A Capterra reviewer praised the whiteboard but identified absent screen sharing as a near deal-breaker for tutoring.Read 15 Oct 2026 · capterra.com

Limit: iPad usability

Apple App Store reviews complain about absent palm rejection, accidental zooming, distorted handwriting and sign-in problems.Read 15 Oct 2026 · apps.apple.com

Limit: missing export and tools

G2 reviewers report limited export quality, no rotate tool, limited brush styles/palette and small label text.Read 15 Oct 2026 · g2.com

Limit: screen sharing

G2 and Capterra reviewers note that Limnu lacks desktop screen sharing and may require a separate conferencing tool.Read 15 Oct 2026 · g2.com

Limit: subscription cancellation

The sole Trustpilot reviewer reported being unable to cancel after leaving a job and said support did not respond.Read 15 Oct 2026 · trustpilot.com

Organization

Users can search, sort, and bulk-edit whiteboards.Read 8 Oct 2026 · limnu.com

Ownership news

ZipSocket announced its acquisition of Limnu on August 14, 2018 and said Limnu would continue as a wholly owned subsidiary.Read 15 Oct 2026 · limnu.com

Praise: collaboration

G2 reviewers praise real-time teamwork, sharing links and Lead mode that keeps participants focused on the presenter.Read 15 Oct 2026 · g2.com

Praise: ease of use

G2 reviewers repeatedly describe Limnu as intuitive, easy to learn and close to using a physical whiteboard.Read 15 Oct 2026 · g2.com

Privacy policy age

The published privacy policy is version 2.0 and was last modified July 19, 2017.Read 15 Oct 2026 · limnu.com

Privacy statement

Limnu’s privacy policy says it does not sell or share user data and that board data belongs to the user.Read 15 Oct 2026 · limnu.com

Rating on Apple App Store

2.6 out of 5 from 13 ratingsRead 15 Oct 2026 · apps.apple.com

Rating on Capterra

4.8 out of 5 from 12 reviewsRead 15 Oct 2026 · capterra.com

Rating on G2

4.7 out of 5 from 17 reviewsRead 15 Oct 2026 · g2.com

Rating on GetApp

4.8 out of 5 from 12 reviewsRead 15 Oct 2026 · getapp.com

Rating on Trustpilot

3.2 out of 5 from 1 reviewRead 15 Oct 2026 · trustpilot.com

Real-time collaboration

Users can draw together on shared boards and invite collaborators by email or link.Read 15 Oct 2026 · limnu.com

Release history

The release-notes page records Teams, admin/security controls and a seven-day trial launch on May 31, 2016.Read 15 Oct 2026 · limnu.com

Security controls

Team plans let administrators control board sharing, restrict sharing to the organization, and manage who can access, share, or invite.Read 8 Oct 2026 · limnu.com

Self-hosting

Official API material says Limnu hosts user sessions, uploaded files and other whiteboard operations, with no self-hosting option described.Read 15 Oct 2026 · limnu.com

Teaching controls

Solo Draw mode lets only the teacher edit while students view updates, while Leading keeps viewers on the presenter’s location.Read 15 Oct 2026 · limnu.com

Use cases

The maker describes uses including team brainstorming, tutoring, process flows, state diagrams, product prioritization, and storyboard reviews.Read 8 Oct 2026 · limnu.com

Video conferencing

Built-in video conferencing and chat are available, with the tutors page specifying up to eight participants.Read 15 Oct 2026 · limnu.com

Plans and prices

Every Limnu plan and price →

Where Specifiction places it

• Online whiteboards#7 of 589.2
• Online Whiteboard Tools#9 of 569.0