Privacy and cookies

The party responsible for quaestio.app can be reached at quaestio.application@gmail.com. Questions about this page, or about how data is handled, are answered there.

In short: the tools calculate in your browser, we keep no accounts, and we sell no data. What does happen is described below.

What you type into a tool stays in your browser. Text, numbers and lists are never sent to us, so we cannot see them. The only exception is a word you choose to suggest, as described below.

The site stores two things locally in your browser, in what is called local storage: the colour theme you chose and the most recently fetched exchange rates. Both stay until you clear your browser data and are never sent anywhere.

Your browser keeps copies of pages you have opened and the files they need, so that they work without a connection. This also applies if you have not installed the site as an app. The copies stay on your device, are never sent to us and disappear when you clear your browser data or uninstall the app. When you are online the latest version is always fetched.

When you use the currency converter, the day’s reference rates are fetched from the European Central Bank through the Frankfurter service. Your browser contacts that service directly, which therefore sees your IP address, as is unavoidable for any network request. No information about what you are calculating is sent with it.

The site runs on Cloudflare, which processes your IP address in order to deliver the pages and protect against attacks. Cloudflare acts as our data processor.

The What is my IP address page asks quaestio.app for your IP address and what Cloudflare knows about your connection, such as provider and approximate location, and shows it only to you. The answer is not stored, not logged and may not be cached. The browser and screen page reads its details directly in your browser and sends nothing.

The DNS lookup page sends the name you look up directly from your browser to Cloudflare’s resolver 1.1.1.1 (cloudflare-dns.com) and, if it does not answer, to Google Public DNS (dns.google). That service therefore sees your IP address, the name and that the query comes from quaestio.app. Quaestio does not see the query and stores nothing. The IPv6 test page contacts Cloudflare at the addresses 1.1.1.1 and 2606:4700:4700::1111, and quaestio.app, to find out which versions of IP work. Cloudflare therefore sees your IP address, as with any network request. The answers are shown only to you and are not stored.

The first time you click or type in a tool on a page, your browser sends a short message to quaestio.app containing the page language and which tool it is, for example the percentage calculator. No cookies, no identifier, no IP address and nothing you typed is stored. The message is stored in Cloudflare Workers Analytics Engine, at Cloudflare, and is used to see which tools are used over time. If the tool is used inside an embedded box on another website, the name of the website showing the box, such as example.com, is stored too, but never the page address or anything about you as a visitor.

The same message also says whether the page is open in the installed app or in the browser. When the app is installed, your browser also sends a short message containing only the language. Neither carries an identifier, so we can see how much the app is used, but never by whom.

Under the crossword helper, the words-from-letters tool and the anagram solver there is a link where you can suggest a missing word. The word is only sent if you press send yourself, together with the language and the tool, and it is stored in the same anonymous way. Words suggested repeatedly are checked against Wiktionary and may be added to the word lists, which are published.

We use visitor statistics from Cloudflare Web Analytics. It measures page views without cookies and without following individual visitors between pages or sites, and is used only to see which tools get used.

Advertising is delivered by Google as a third party. Google may use cookies and similar technologies to measure and personalise ads. Before any such technology is used, a consent dialog lets you choose. Once you have made a choice, a link appears at the foot of the page where you can reopen the dialog and change your mind at any time.

Google describes for itself how it uses information from sites that show its ads: How Google uses information from sites or apps that use its services.

If you decline personalised advertising, you are shown ads that are not based on your history instead. The tools work exactly the same either way.

You have the right to request access to, correction of, or deletion of personal data about you. Since we store nothing that can be linked to you beyond what is described above, there is in practice little to hand over, but the question is always answered.

If you are unhappy with how your data is handled, you can contact the Swedish Authority for Privacy Protection, which is the supervisory authority in Sweden.

This page is updated whenever something changes in how the site works.