CalcProMaster · House #26,306

What it is

Calls itself “online calculators”.

• Calls itself: online calculators

“CalcProMaster is a free library of 1211 online calculators across 20 categories”

Where it puts itself

Rules out “cookies”. Publishes a comparison page.

• Says it will not: cookies

“What makes these calculators different is transparency .”

“We do not use cookies.”

What it costs

A free tier, free forever. No monthly or yearly plan. No one-time option.

• One-time: no
• Monthly: no
• Yearly: no
• Commission: no
• Free plan: free forever

“Yes — all 1219+ calculators are completely free with no sign-up, no paywall and no usage limits.”

Who it sells to

Sells to consumers.

• Sells to: consumers

“1200+ free calculators for finance, health, math, science, engineering & everyday life”

How it runs

A web app. Runs locally and works offline. Built with Google Analytics.

• Kind: web
• Runs where: on the device, offline
• Analytics: Google Analytics

“Every calculator runs entirely in your browser: no sign-up, no paywall, and no data leaves your device.”

“Results are computed instantly in your browser and never leave your device.”

What it works with

Names Fazier, Google AdSense and 2 more on its pages.

• Names: Fazier · Google AdSense · Google Analytics · +1

“CalcProMaster is a free library of 1211 online calculators across 20 categories”

“Fazier — fresh tools every day”

What it offers as proof

Live, no waitlist. Claims “1200+”. Try it without signing up. Publishes docs, a blog and a careers page.

• Number claimed: 1200+
• Trial asks for: nothing

“Every calculator shows its formula, a step-by-step worked example, and the assumptions behind the result, so you can trust the numbers. Results are computed instantly in your browser and never leave your device.”

“No. Every calculator runs instantly in your browser — nothing to install, nothing to sign up for.”