Kumu vs Sigma.js

Kumu organizes complex data into relationship maps connecting people, systems, and concepts. It supports stakeholder, systems, social network, community asset, and concept mapping. Users can build maps by hand or import spreadsheet data, including live data from Google Sheets. Built-in analysis includes closeness, betweenness, and eigenvector centrality, plus automated community detection and clustering. Kumu also provides a presentation builder and lets users embed interactive maps on websites. It is available on the web and as self-hosted software, and the maker describes it as a tool for organizations working with complex relationships and systems, including social-sector leaders seeking to create impact. The free Basic workspace includes unlimited public projects, collaborators, maps, and views, but public projects are visible to everyone and indexed by search engines. Private projects require payment or an eligible student discount; a two-week trial of private projects is available. A private project costs $9/month per project. The Pro workspace costs $10/month per workspace, with private projects priced separately. Enterprise is billed annually per user, with self-hosted or managed cloud options, SAML single sign-on, priority support, and a 99.95% uptime SLA.

Sigma.js has no write-up on Specifiction yet; its figures are above.