Spreadsheets · head to head
Mathesar vs Sigma Computing
Mathesar
Spreadsheets
Spreadsheet style interface that edits an existing PostgreSQL database directly, with no schema of its own
- From
- Free
- Rated
- -
Sigma Computing
Spreadsheets
Spreadsheet-style analytics that queries a cloud data warehouse directly with no extract layer
- From
- On request
- Rated
- -
The short version
- Only Mathesar has a free tier, so it costs nothing to try first.
- Each has a real cost: Mathesar there is no hosted offering of any kind, so a team without someone who can run and secure a server cannot use it at all.; Sigma Computing every user interaction is a live warehouse query, so compute costs rise with adoption and land on the warehouse invoice rather than the BI line item, which routinely surprises the team that approved the purchase.
- They diverge on capability: Mathesar covers Direct PostgreSQL editing, Sigma Computing covers Spreadsheet interface over SQL.
- Prices and features above were last checked on 31 August 2026.
Where they differ
Only the attributes on which Mathesar and Sigma Computing actually diverge.
| Attribute | Mathesar | Sigma Computing |
|---|---|---|
| Starting price | Free | On request |
| Pricing model | Open source, no licence fee | quote |
| Free tier | Yes | No |
| Platforms | Web, Linux | Web |
Identical on both: user rating (Not yet rated), category (Spreadsheets).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Mathesar
- Direct PostgreSQL editing
- PostgreSQL permissions
- Schema editing
- Data exploration
- Relationship navigation
- Import of tabular files
- Self hosted only
Only in Sigma Computing
- Spreadsheet interface over SQL
- No extract layer
- Input tables and write-back
- Workbooks
- Embedded analytics
- Version control and dbt awareness
What people use each for
The jobs each tool is most often brought in to do.
Mathesar
- A nonprofit or research group whose data is already in PostgreSQL and whose staff cannot write SQLnot Sigma Computing
- Giving analysts a safe editing interface governed by database roles that already existnot Sigma Computing
- Replacing a hand built Django or Rails admin screen that nobody wants to maintainnot Sigma Computing
- Editing production reference data where an export, edit and reimport cycle would risk losing concurrent changesnot Sigma Computing
Sigma Computing
- A finance or operations team that lives in spreadsheets and needs warehouse-scale data without exporting CSVsnot Mathesar
- An organisation that has consolidated on Snowflake or Databricks and wants one governed access layer rather than several desktop toolsnot Mathesar
- Planning and scenario work where users need to type assumptions back into governed tables rather than into a local filenot Mathesar
- Embedding customer-facing analytics into a product where each tenant must only see their own rowsnot Mathesar
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Mathesar
- There is no hosted offering of any kind, so a team without someone who can run and secure a server cannot use it at all.
- It works only with PostgreSQL, so a MySQL, SQL Server or SQLite estate is excluded outright.
- There are no automations, no webhooks and effectively no integration catalogue, so it edits data and does nothing else.
- Because it writes to the live database, a careless bulk edit or column type change is a production change with no staging step and no undo.
- Development is grant and community funded rather than commercially funded, so roadmap pace and long term continuity carry a different risk profile from a venture backed vendor.
Sigma Computing
- Every user interaction is a live warehouse query, so compute costs rise with adoption and land on the warehouse invoice rather than the BI line item, which routinely surprises the team that approved the purchase.
- It cannot work without a supported cloud data warehouse, so an organisation running analytics on an on-premises database or a plain application database has nothing to connect to.
- Pricing is not published and seats are differentiated by capability, so budgeting requires a sales cycle and a headcount forecast before you can compare it with a tool you could simply buy.
- Performance is only as good as the warehouse behind it, which means slow or badly modelled tables surface as a slow interface and the fix is a data engineering project, not a Sigma setting.
- Statistical and scientific visualisation is limited compared with dedicated tools, so anything beyond standard business charting has to be done elsewhere and brought back in.
Pricing, plan by plan
Mathesar
Free- Self hosted open sourceFree
- No licence fee
- No hosted option offered
- Connects to your existing PostgreSQL database
Sigma Computing
On request- Sigma Computing$undefined/year
- Quoted per organisation
- Seat types are differentiated by whether a user views, explores or authors
- Warehouse compute is billed separately by your cloud data warehouse vendor
Which should you pick?
Choose Mathesar if
- You need direct postgresql editing.
- You want to start without paying.
- You work on Web, Linux.
- You also want postgresql permissions.
Choose Sigma Computing if
- You need spreadsheet interface over sql.
- You also want no extract layer.
Questions people ask
- Is Mathesar or Sigma Computing better?
- Neither clearly leads. Mathesar starts at Free and Sigma Computing at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Mathesar or Sigma Computing?
- Mathesar has a free tier; the other does not. Paid plans start at Free for Mathesar and On request for Sigma Computing.
- Does Mathesar or Sigma Computing run on more platforms?
- Mathesar runs on Web, Linux. Sigma Computing runs on Web.
- Can I use Mathesar for free?
- Yes. Mathesar has a free tier, so you can try it without paying. Sigma Computing starts at On request.
- What is Mathesar best used for?
- Mathesar is most often used for a nonprofit or research group whose data is already in postgresql and whose staff cannot write sql, giving analysts a safe editing interface governed by database roles that already exist, replacing a hand built django or rails admin screen that nobody wants to maintain, editing production reference data where an export, edit and reimport cycle would risk losing concurrent changes. Of those, a nonprofit or research group whose data is already in postgresql and whose staff cannot write sql and giving analysts a safe editing interface governed by database roles that already exist are not what Sigma Computing is typically brought in for.
- What can Mathesar do that Sigma Computing cannot?
- Mathesar covers Direct PostgreSQL editing, PostgreSQL permissions, Schema editing, Data exploration. Sigma Computing covers Spreadsheet interface over SQL, No extract layer, Input tables and write-back, Workbooks.
Answered from the vendors’ own pages
Mathesar: Is there a cloud version?
No. Self hosting is the only option, and that is a deliberate project decision rather than a gap waiting to be filled.
Sigma Computing: Does Sigma store a copy of my data?
No. Queries are executed on your warehouse and results are returned for display, which is why there is no extract refresh to manage.
Mathesar: How does it handle permissions?
Through PostgreSQL roles and privileges directly, so there is no second permission model to keep in step.
Sigma Computing: What does it actually cost?
The vendor does not publish prices. Expect an annual contract priced by seat type, plus a warehouse compute increase you should model separately.
Mathesar: What is the row limit?
Whatever PostgreSQL can handle. Mathesar adds no storage layer of its own.
Sigma Computing: Can business users break the warehouse?
They can run expensive queries. Warehouse sizing, query limits and materialised tables are the controls, and they need configuring before a wide rollout.
Mathesar: Does it support databases other than PostgreSQL?
No.
Sigma Computing: Is it a replacement for a modelling layer like dbt?
No. Sigma works best on top of modelled tables and is usually deployed alongside dbt rather than instead of it.
Mathesar: Can it replace Airtable?
Only for editing and exploring data. There are no automations, apps or integrations.
Related pages
More on Sigma Computing
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