Last verified: September 15, 2026, against Calculator Studio's own shutdown notice.

What happened to Calculator Studio

Calculator Studio closed on September 1, 2026. Its own website now shows a shutdown notice rather than the product. In its own words, the team said demand for standalone calculator tools “has fallen steadily as AI has changed how people build web calculators, to the point where we could no longer sustain the product.” The notice directs existing users to export their projects and points to Airrange as a recommended place to migrate to.

If you had calculators live on Calculator Studio, that’s the situation you’re in right now: your embeds may already be dark, and you need a new home for them before your website visitors notice.

Rebuild your calculator on Appizy free

Upload your original Excel or LibreOffice file — no rebuild in a new drag-and-drop editor required.

What to check before you pick a replacement

Calculator Studio isn’t the first spreadsheet tool to shut down, and it won’t be the last. Before you commit to wherever you migrate next, it’s worth checking a few things:

Do you still have the source file?

If your calculator was built directly inside Calculator Studio's own editor (not imported from Excel), you may not have a spreadsheet to fall back on. Check your exports first — this changes which tools are even an option.

Can the new tool import your formulas, or do you rebuild them?

Some calculator builders make you re-create your logic by hand in their own formula editor. Others read your Excel/ODS file directly and keep your existing formulas. That's the difference between a 10-minute migration and a multi-day rebuild.

What happens if this tool shuts down too?

Ask whether you can export your source spreadsheet back out at any time. A tool that locks your logic inside its own editor with no export path puts you back in this exact situation later.

Does the free tier actually work in production?

Some tools' "free" plans are demo-only or capped so low they're unusable for a real embed. Check the actual limits, not just the word "free" on the homepage.

Where Calculator Studio’s own team pointed you

Calculator Studio’s shutdown page recommends Airrange, and Airrange does offer a migration path with a drag-and-drop builder for Excel and Google Sheets files. It’s a reasonable option, particularly if you were already comfortable rebuilding your layout in a visual editor.

It’s not the only option, though — and it’s worth comparing before you commit, especially since Airrange’s published apps start at €59/month with no permanent free tier for production use.

Why some teams are choosing Appizy instead

Appizy takes a different approach from both Calculator Studio’s original editor and Airrange’s drag-and-drop builder: you upload your existing Excel (.xlsx) or LibreOffice (.ods) file, and Appizy publishes it as-is.

  • No rebuild step. If your calculator started life as a spreadsheet, or you can recreate it as one, Appizy reads the formulas directly — VLOOKUP, INDEX/MATCH, nested IFs, and 400+ other functions — instead of asking you to re-enter your logic in a new interface.
  • A free plan you can actually publish with. You don’t need a paid plan just to get a working calculator live while you evaluate the tool.
  • Formulas run server-side. Your pricing logic and business rules aren’t exposed in the page source the way some client-side calculator builders expose theirs.
  • .ods support. If your original file is a LibreOffice/OpenOffice spreadsheet rather than Excel, Appizy handles it natively — most calculator builders, including Calculator Studio and Airrange, are Excel/Google Sheets first.

Migrating from Calculator Studio to Appizy

  1. Find your source spreadsheet. If you built the calculator from an Excel or ODS file originally, locate that file — it’s your fastest path in. If you only have Calculator Studio’s export, check whether it includes a spreadsheet you can open in Excel or LibreOffice.
  2. Upload it to Appizy. Sign up free and upload the file. Appizy detects your inputs and outputs automatically.
  3. Rebuild the design quickly. Apply a theme, adjust the layout, and add your branding — this is usually the fastest part of the process.
  4. Re-embed on your site. Swap your old Calculator Studio embed code for the new Appizy embed code, then test the live page before you remove the old one.

Get your calculator back online today

Upload your spreadsheet and see it running as a web app in minutes.

Try Appizy free