Legal

Privacy policy

Last updated: 5 October 2026

Wordü is a web app for learning English vocabulary. This page says plainly what we store, what we use it for and what we don’t do.

Three promises up front. We don’t sell your information to anyone. We don’t use it for advertising. You can delete your account and everything attached to it whenever you like, from inside the app.

1. Who is responsible

Wordü is an independent project by Otto Jiménez, based in Colombia, who acts as the controller of the information described here. Any question about your data goes to the address at the bottom of this page.

2. What we collect

Only what the app needs to work.

• Your account. Your name and email address. If you signed up with a password, we store a scrypt hash of it, never the password. If you signed in with Google or Facebook, the provider gives us your name, email, profile picture and an account identifier; your Google or Facebook password never reaches us.
• Your learning. The words you save, when each one is due for review and your review history: the rating you gave and the date.
• Your reports. If you flag a word as wrong, we store which part you pointed at and any comment you write.
• Your settings. Your English level, native language, interface language, time zone, the time and channels of your reminders, the visual theme and whether examples are read aloud.
• Reminders. If you turn on notifications, we store the subscription your browser generates so we can send them.
• Your AI API keys, only if you choose to add them. They are stored encrypted and never shown again.
• If you use Wordü without an account. A random identifier in a cookie, the words you looked up with it and an irreversible fingerprint of your IP address. They are used to count free searches and to offer to save those words if you later create an account. We don’t store your IP address itself.
• Technical data. Our servers produce short-lived logs (time, path, errors) to keep the service running and defend it from abuse.
• How the site and the app are used. We use Microsoft Clarity to understand which pages are visited and where people get stuck. It records your clicks, your scrolling, the pages you view and data about your device and browser, and with that it can reconstruct what a visit looked like. What you type into forms is masked and not recorded: your password, your API keys and your settings never reach Clarity.

Wordü has no advertising.

3. What we use it for

To provide the service: showing your words, scheduling your reviews, adapting examples to your level, sending the reminders you asked for and the code that confirms your email. And, with Clarity’s usage data, to find errors and improve the app. Nothing else.

4. What happens to AI-generated content

When you look up a word that isn’t in the dictionary, or ask for examples at your level, Wordü may query an AI provider. We send the word, its definitions, the level and the language to translate into. We don’t send your name, your email or anything that identifies you.

The result is saved to the shared dictionary and becomes available to all users. Those entries are not linked to your account.

5. Who it is shared with

Nobody, for their own purposes. These providers are involved only so the app can work:

• Google and Facebook, if you choose to sign in with them.
• Our hosting provider, where the server and database live.
• Our email provider, which delivers verification codes and reminders. It receives your address and the content of those messages.
• AI providers (Groq, OpenRouter and Anthropic), which receive what section 4 describes.
• Your browser’s notification service (Google’s, Mozilla’s or Apple’s, depending on the browser), which delivers push reminders.
• Microsoft, through Clarity, which receives the usage data described in section 2 and handles it under its own privacy policy.
• Wikimedia. Pronunciation audio is loaded directly from their servers, which see your IP address like any website you visit.

Some of these providers are outside Colombia, so your information may be processed in other countries.

6. Voice and microphone

Reading aloud and pronunciation practice are done by your browser, not by Wordü. We don’t receive or store your voice. Depending on the browser, speech recognition may be sent to the browser vendor for processing; that is governed by their policy, not ours.

7. Cookies

Those needed for the app to work: your session, the one that identifies your searches without an account, the visual theme and the language.

In addition, Microsoft Clarity sets its own cookies to recognise your browser between visits and group the pages of one session. They are for measurement, not advertising. You can block them in your browser settings without Wordü ceasing to work.

8. How long we keep it

For as long as you have the account. Deleting it removes everything attached to it; the details are on the Delete your account page.

An account created with email and password that isn’t confirmed within 48 hours is deleted automatically.

9. Your rights

You can access, update and correct your data, ask for a copy, withdraw your consent and ask us to delete it, under Colombia’s Law 1581 of 2012 and the equivalent rules in your country. Most of this you can do yourself in Settings; for the rest, write to us. You can also lodge a complaint with Colombia’s Superintendencia de Industria y Comercio.

10. Minors

Wordü is not directed at people under 18 and we don’t knowingly collect information from them.

11. Changes

If this policy changes in an important way, we’ll announce it in the app before the change takes effect. The date above shows the last update.

Contact: [email protected]