Privacy

The tools run in your browser and what you type into them stays there. An account is optional, and even then we hold only an email address and which tools you saved or opened.

What we do not collect

The tools do not require an account. Without one we hold nothing about you at all — no name, no email, no phone number, no usage record.

If you make an account

An account is free and optional. The tools all work without one; an account is what a tool box and a history are kept in, and what any paid feature would attach to. You can sign in with Google, with an email and password, or with a link we mail you.

• Your email address, used to send the sign-in link and nothing else. No newsletter, no marketing.
• The list of tools you saved. Just the tool names; what you typed into them is never part of it.
• Which tools you opened, how many times, and when you last opened them. Again, tool names and counts — not the contents.

You can see all of it on your account page, and clear the history there yourself at any time.

If you set a password it is stored hashed, never in readable form; if you sign in with Google or a mailed link there is no password at all. Deleting your account deletes everything listed above — write to the address below and it is done.

Authentication and these lists are handled by Supabase, acting as our processor. Rows are readable only by the account that owns them. If you sign in with Google, Google tells us your email address and nothing more.

What you enter into a tool — amounts, names, dates, images, text — is processed in your browser and is never sent to our servers. Closing or reloading the page discards it.

What is stored on your device

A few small preferences are kept in your browser’s local storage so the site behaves consistently. They never leave your device and we cannot read them.

• Language choice (Korean or English).
• Whether tool sounds are on or off.
• Which tools you opened and how often, to show shortcuts and your history.

You can clear all of it at any time by clearing site data in your browser.

Advertising

The site carries advertising. Ad providers may set cookies or use device identifiers to measure and personalise ads, under their own policies rather than ours. Where required by law, you will be asked for consent before any such cookie is set, and you can decline without losing access to any tool.

External requests

Two things are fetched from outside: web fonts, and the European Central Bank reference rates used by the currency converter. Neither carries information about you beyond what any web request necessarily includes, such as your IP address.

Children

The tools are general-purpose and are not directed at children. We do not knowingly collect information from anyone, of any age.

Changes

If this policy changes, the date at the top of this page changes with it. Material changes will be noted on the site.