Privacy Policy

We collect nothing about you. Zero. Null. Nada.

All calculations happen in your browser. Your mortgage amount, your weight, your salary — none of it ever touches our servers, because none of it ever leaves your device. We literally can't see it.

Personally identifiable information: None. We don't have accounts, forms, or any mechanism to collect your name, email, or any other personal details.

Calculator inputs: None. When you type numbers into our calculators, the math happens in your browser and the data evaporates when you close the tab. We see no inputs, no outputs, no calculations.

Nothing else, either: No IP addresses (beyond what your internet connection inherently exposes to any website). No device fingerprinting. No behavioral tracking.

We use your browser's localStorage to remember two things:

• Recently used calculators: So your "Recent Obsessions" section stays accurate. This is a list of calculator names, nothing else.
• Dark/Light mode preference: So we remember whether you're a Night Owl. This is a single boolean value (true/false).

localStorage data never leaves your device. It's not sent to us. It's not accessible to third parties. It's stored locally, read locally, stays locally.

We don't use cookies. We prefer the edible kind.

Seriously though — no cookies, no tracking pixels, no session identifiers. Nothing that follows you around the web. CalculatorMate has zero interest in your browsing habits.

We currently run no analytics on CalculatorMate. If analytics are added in the future, they will be cookieless and privacy-first (we're thinking Plausible or Fathom — tools that measure aggregate page visits without identifying individual users).

If and when that changes, this policy will be updated and the change will be noted here with a new date. No creepy retroactive tracking.

There are no ads on CalculatorMate. No ad networks. No remarketing pixels. No "partners" who receive your data. We are not that kind of website.

The only third-party request your browser makes when visiting CalculatorMate is loading the Inter font from Google Fonts (the nice typeface we use). Google's privacy policy applies to that request, though it exposes nothing unique about you.

CalculatorMate is safe for all ages. We don't collect data from anyone — let alone children. There's nothing to collect.

If your kid is using CalculatorMate to do math homework, we consider that a feature, not a liability.

This policy may be updated if CalculatorMate adds new features that affect how data is handled. The "last updated" date at the top will change when the policy changes, and significant changes will be noted clearly.

We will not retroactively change how existing data is handled — though given that we have no existing data, this is mostly a philosophical commitment.

If you have questions about this privacy policy, something feels off, or you just want to ask why we don't have a cookie banner (answer: no cookies), reach us at:

privacy@calculatormate.net

We're real people and we'll actually respond. Eventually. We're small.