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MathBehind · Office #56,048

Free calculators that show the math behind the answer

In the Calculators for everyday math neighborhood (Desktop and utilities). In town since 30 Oct 2026.

Nobody has claimed this office yet. Tablif records every new product and gives it an office; when its owner claims it, the lights go on.

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What Tablif read on MathBehind's site

MathBehind describes itself as: “MathBehind: Free Calculators That Show the Math”

What it is

Calls itself “calculators” and “converters”.

  • Calls itself: calculators · converters
“MathBehind is a free collection of 89 calculators and converters for freelancers, SaaS teams and developers.”

Where it puts itself

Rules out “sign-up”. Publishes a comparison page.

  • Says it will not: sign-up
“Most online calculators hide the working. You type in your numbers, get a result, and have no way to tell whether the answer is right short of running the maths yourself on paper.”
“There is no sign-up, and nothing you type leaves your browser.”

What it costs

A free tier, free forever. No monthly plan.

  • Monthly: no
  • Free plan: free forever
“There is no sign-up, and nothing you type leaves your browser.”
“MathBehind is a free collection of 89 calculators and converters for freelancers, SaaS teams and developers.”
“The site is independent, free, and funded entirely by display ads.”

Who it sells to

Made for SaaS teams, developers and freelancers. Available in 3 languages.

  • Made for: SaaS teams · developers · freelancers
  • Languages: EN · ES · عربي
“MathBehind is a free collection of 89 calculators and converters for freelancers, SaaS teams and developers.”
“EN ES عربي”

How it runs

A web app. Runs locally and works offline. AI is a side feature. Built with Google Analytics.

  • Kind: web
  • Runs where: on the device, offline
  • AI role: a side feature
  • Analytics: Google Analytics
“There is no sign-up, and nothing you type leaves your browser.”
“Independent, free calculators for freelancers, SaaS teams, AI builders and country tax.”

What it works with

Names Claude, Fiverr and 5 more on its pages.

  • Names: Claude · Fiverr · Freelancer.com · +4
“Estimate the cost of OpenAI, Claude and Gemini API calls per request and per month”
“See what you actually take home from Upwork, Fiverr or Freelancer.com after the service fee”

What it offers as proof

Live, no waitlist. Try it without signing up. Publishes docs and a blog.

  • Trial asks for: nothing
“There is no sign-up, and nothing you type leaves your browser.”
“No sign-up. Nothing you type leaves your browser.”

Sources

Tablif read these pages, last on 30 Oct 2026. Everything above is what the product says about itself; Tablif does not verify every claim.

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