Best for OSS Apache 2 with cloud option
Try Cube (Cube.dev)Cube Core (OSS) is Apache 2 free for headless BI plus semantic layer plus self-hosted plus standard connectors. Cube Cloud Starter is free for up to 1K monthly active accounts plus 1 deployment plus basic monitoring. Cube Cloud Premium at $1K-$3K monthly adds multi-deployment plus advanced caching plus pre-aggregations plus advanced security. Enterprise at $5K-$25K plus monthly covers custom deployments plus dedicated CSM plus SSO plus audit plus SLA. Where Sigma is closed-source SaaS dashboards, Cube provides Apache 2 OSS headless BI (semantic layer plus API only, no built-in UI). For SaaS companies embedding custom UI components fed by API-driven analytics, Cube's headless approach beats Sigma's UI-first model. The trade vs Sigma: requires custom UI development (no built-in dashboards), smaller community vs Sigma, requires DevOps for self-hosting.
Strengths
- +Apache 2 OSS for self-hosting
- +Headless BI plus semantic layer (custom UI)
- +$1K-$3K Cloud Premium parity with Sigma Essentials
- +Strong fit for engineering-led embedded analytics
Trade-offs
- −Requires custom UI development (no built-in dashboards)
- −Smaller community vs Sigma
- −Requires DevOps for self-hosting
- Cube Core (OSS)
- Free, Apache 2
- Cube Cloud Starter
- Free, 1K MAU
- Cube Cloud Premium
- Custom (~$1K-$3K/mo)
- Enterprise
- Custom (~$5K-$25K+/mo)
Migration steps
- Install Cube Core via npm or Docker (free OSS).
- Configure semantic layer plus API endpoints.
- Build custom UI components consuming Cube API.
- Run parallel with Sigma for 60-90 days.
- Cancel Sigma once Cube plus custom UI covers analytics program.
Not for: Pass on Cube if your team needs Sigma's spreadsheet UX without custom UI development; staying with Sigma keeps the polished UI.
Paid plans from $2,000.00/mo