Kater

Sigma alternatives

Teams leave Sigma for different reasons. Here are the tools they move to.

8 alternatives to Sigma: who each one suits, what it costs, and where it falls short. If Sigma still fits, the last section says so.

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Kater makes Kater, one of the tools on this list. We list it first. Every fact about another tool comes from its own docs and pricing pages, and each card says where that tool is strong. Reviewed October 2026.

The short version

Each alternative to Sigma, its type and who it suits best
Tool Type Best for
Kater BI for people and agents Teams whose own AI agent builds and answers on governed metrics
Tableau Visual analytics Analysts who draw custom visuals by hand
Power BI Microsoft BI Microsoft shops
Looker Semantic BI Teams committed to Google Cloud and BigQuery
Metabase Open-source BI A free BI tool you host yourself
Hex Notebook BI Analysts who work in Python notebooks
Omni Modern semantic BI Dashboard-first teams that want a governed model
Lightdash BI on dbt Teams that keep their metrics in dbt

Why teams look for a Sigma alternative

Git keeps a copy. Sigma keeps the work.

Workbooks live in Sigma. Workbooks as code is in beta, and a Sigma partner found that only the simplest workbook imported back from git.

“So plan for a one-way trip: people build in Sigma, Git keeps the record.”
phData, a Sigma partner, September 2026

Builder seats get rationed.

Viewers are free, but each person who builds needs a paid seat. Many teams keep most people on view-only.

“We have very few admin or report creator licenses, while everyone else is on a view-only mode.”
Sigma customer, PeerSpot review, March 2025

Agents cost extra.

Sigma Agents are a premium feature, metered in Sigma credits. The model tokens bill to your AI provider on top.

It looks like Excel, but it is not Excel.

Sigma works in columns, not cells. Users say the grid takes time to learn.

“I think there is a steep learning curve. It is not as intuitive as I was hoping…”
Head of marketing, PeerSpot review, December 2025

The 8 alternatives

01

Kater

BI for people and agents By Kater

Best for teams whose own AI agent builds and answers on governed metrics

Your data team defines each metric once, in SQL. Your coding agent builds models, queries, dashboards and apps as files in git, and Kater compiles every change. People read dashboards in the browser, or ask in Slack, Claude or ChatGPT, and every answer uses the same metrics.

A good fit if

  • You want files in git to be the source of truth, not a copy.
  • You want each metric defined once, in SQL, and read by every workbook and agent.
  • Your team builds with Claude Code, Codex or Cursor.
  • Your warehouse is Snowflake or DuckDB.

Watch out for

  • Kater connects to Snowflake and DuckDB today.
  • Embedding is in development.
  • Kater is not open source. Your content is files you can clone and keep.
  • Kater is a young company.

AI

None of its own. Your agent: Claude, ChatGPT, Claude Code, Codex or Cursor.

Pricing

A 30-day free trial with every feature, then a subscription quoted for your team. Kater does not charge per viewer or per dashboard. Kater runs no chat of its own, so answers run in the agent your team already uses.

Kater vs Sigma in detail
02

Tableau

Visual analytics By Salesforce

Best for analysts who draw custom visuals by hand

Tableau is the best tool for drawing charts by hand.

A good fit if

  • Your analysts build highly custom visuals by hand, and love it.
  • You need offline work on extracts in Tableau Desktop.
  • You embed Tableau views in your own product.

Watch out for

  • Renewals jump under Salesforce.
  • The product stopped moving.
  • No version control, and no checks.
  • Building by hand is slow next to an agent.

AI

Hosted Tableau MCP connects Claude and ChatGPT. Tableau Agent needs Cloud+ or the Tableau+ Bundle.

Pricing

Tableau Cloud is priced per user per month, billed annually. Standard is $75 for a Creator, $42 for an Explorer and $15 for a Viewer. Enterprise is $115, $70 and $35. Tableau Agent needs Cloud+ or the Tableau+ Bundle, priced by quote, and Tableau Next starts at $40 a user a month.

Kater vs Tableau Tableau alternatives
03

Power BI

Microsoft BI By Microsoft

Best for Microsoft shops

Power BI is the default in Microsoft shops.

A good fit if

  • You are a Microsoft shop, and Power BI comes with your E5 licenses.
  • Your analysts live in Excel and Power Query.
  • Your data is in Fabric, SQL Server or Azure.
  • You embed Power BI reports in your own product.

Watch out for

  • DAX is hard to write, and harder to debug.
  • Costs climb, and everything points to Fabric.
  • Git came late, and it breaks.
  • Copilot uses up capacity, not your backlog.

AI

Copilot, which needs Fabric capacity, and an MCP server for governed models.

Pricing

Power BI Pro is $14 a user a month and Premium Per User is $24, after increases in April 2025. Below an F64 capacity, every viewer needs a paid license. Fabric capacity runs from about $263 a month for F2 to about $8,410 for F64, pay as you go. Copilot needs F2 or higher.

Kater vs Power BI Power BI alternatives
04

Looker

Semantic BI By Google Cloud

Best for teams committed to Google Cloud and BigQuery

Looker made the governed model and git normal in BI.

A good fit if

  • You embed Looker in your own product.
  • You are committed to Google Cloud, BigQuery and Gemini.
  • Your LookML project is large, stable and well staffed.

Watch out for

  • LookML is a second language.
  • Only the model is in git.
  • The price keeps going up.
  • The core product moves slowly.

AI

Conversational Analytics in Looker and Gemini Enterprise. The managed MCP server is in preview.

Pricing

Looker sells a platform edition (Standard, Enterprise or Embed) plus Developer, Standard and Viewer users, on annual terms. Google lists no prices. The Standard edition lists at $60,000 a year on AWS Marketplace, before users. Conversational Analytics will be metered in data tokens after its promotional period.

Kater vs Looker Looker alternatives
05

Metabase

Open-source BI By Metabase

Best for a free BI tool you host yourself

Metabase is the easy first BI tool.

A good fit if

  • You need a free tool that you host yourself.
  • Your data is in Postgres, MySQL or BigQuery.
  • You embed dashboards in your own product.
  • You have a few dashboards and a small team.

Watch out for

  • The work happens in a GUI.
  • Metrics drift as dashboards multiply.
  • Simple charts, with a low ceiling.
  • Every viewer is a paid user.

AI

Metabot in every plan, with Slack and an MCP server.

Pricing

Metabase is free to host yourself. Cloud Starter is $100 a month with 5 users, then $6 for each user. Pro is $575 a month with 10 users, then $12 for each user. Enterprise starts at $20,000 a year. Git sync and row-level permissions need Pro or Enterprise.

Kater vs Metabase Metabase alternatives
06

Hex

Notebook BI By Hex Technologies

Best for analysts who work in Python notebooks

Hex is a great notebook for analysts.

A good fit if

  • Your analysts write one-off Python in notebooks for statistical work.
  • Exploration matters more to you than governed dashboards.
  • Your warehouse is BigQuery, Databricks or Postgres.

Watch out for

  • Notebooks multiply, and numbers drift.
  • Dashboards are not its strength.
  • Git is an export, not the source.
  • Credits cap the AI.

AI

Threads in Hex and Slack. Each person needs an Explorer seat, and use draws on credits.

Pricing

Hex charges for each editor: $36 a month on Professional and $75 on Team, with Enterprise by quote. Business users who ask Threads need an Explorer seat. Agent use draws on monthly credits, and 50 more credits cost $25.

Kater vs Hex Hex alternatives
07

Omni

Modern semantic BI By Omni Analytics

Best for dashboard-first teams that want a governed model

Omni builds governed BI around the dashboard.

A good fit if

  • Dashboards are how most of your company reads data.
  • Business users want to drag and drop their own analysis.
  • You embed analytics in your own product.
  • Your warehouse is BigQuery, Databricks, Redshift or Postgres.
  • You are leaving Looker and want a familiar model with a modern UI.

Watch out for

  • The dashboard is the center.
  • The agent is Omni’s, not yours.
  • Only the model is in git, and it is YAML.
  • Topics take work to set up.

AI

Omni Agent in the app and in Slack, and an MCP server.

Pricing

Omni does not publish prices. Vendr reports a median contract near $28,000 a year. AI use runs on credits with overage billing.

Kater vs Omni Omni alternatives
08

Lightdash

BI on dbt By Lightdash

Best for teams that keep their metrics in dbt

Lightdash brings BI to your dbt project.

A good fit if

  • You want your metrics to stay inside your dbt project.
  • You want open source, or you host your own tools.
  • You need to embed analytics in your own product today.
  • Your warehouse is BigQuery, Databricks, Redshift, Postgres or ClickHouse.

Watch out for

  • Metrics are YAML.
  • Business users find it hard.
  • Content as code is optional.

AI

AI agents in the app and in Slack, and an MCP server. In Slack, an agent uses its creator’s access unless an admin requires sign-in.

Pricing

Lightdash is free to host yourself. Cloud Pro is $3,000 a month, with no charge for each seat.

Kater vs Lightdash Lightdash alternatives

When to stay with Sigma

  • Your business users want to build their own analysis in a spreadsheet grid.
  • You need input tables that write back to the warehouse.
  • You embed analytics in your own product.
  • Your warehouse is BigQuery, Databricks or Redshift.
Kater vs Sigma, row by row

Questions

What is the best alternative to Sigma?

It depends on why you are leaving. For teams whose own AI agent builds and answers on governed metrics, Kater. For analysts who draw custom visuals by hand, Tableau. For Microsoft shops, Power BI. For teams committed to Google Cloud and BigQuery, Looker. For a free BI tool you host yourself, Metabase. For analysts who work in Python notebooks, Hex. For dashboard-first teams that want a governed model, Omni. For teams that keep their metrics in dbt, Lightdash.

Is there a free alternative to Sigma?

Yes. Metabase and Lightdash are open source and free to host yourself. Their cloud plans are paid. Kater has a 30-day free trial with every feature.

How do we move from Sigma to Kater?

Ask your agent to migrate one dashboard. Kater rebuilds it as a private draft on your warehouse, and you compare the numbers before you publish. We do the migration for free.

Can we keep Excel-style formulas?

Yes. Type a formula such as =B1/C1 over a query’s rows. Kater keeps it as a field, and the warehouse computes it.

Alternatives to another tool

Tableau alternatives Power BI alternatives Looker alternatives Metabase alternatives Hex alternatives Omni alternatives Lightdash alternatives All BI tools

Moving from Sigma? We do the migration for free.

Tell us what you want to move. We do the migration with you, on your warehouse, and we do not charge for it. Then compare the numbers and decide.

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