Privacy Policy

Last updated: November 2, 2026

Voxio is a flashcard app for learning Spanish words. It is published by Andreas Daans, Belgium (“we”, “us”), who is responsible for the data described here. This policy explains what data the app and this website process, and why.

Summary

• There is no account or login. We never ask for your name, email address or phone number.
• Your learning progress is stored only on your phone.
• The app sends anonymous usage statistics so we can see which features work. They are not linked to who you are.
• The app does not use the microphone, show ads, track you across other apps or websites, or sell any data.

Data stored on your phone

The app keeps a small database on your device with the words and your progress for each word (how well you know it and when it should come back). This data never leaves your phone. Deleting the app deletes it.

Anonymous usage statistics

To understand how the app is used and to find bugs, the app sends usage events to PostHog, an analytics service. We use PostHog’s EU cloud, so the data is stored in the European Union (Frankfurt, Germany).

What is sent

• A random ID created by the app the first time it runs. It doesn’t contain or reveal who you are.
• What you do in the app: the session length and deck you choose; when a session starts, ends or is stopped early; cards you flip and swipe (which word and which direction); audio you play; when you open the help screen.
• App events: when the app is installed, updated, opened or put in the background.
• Error reports: technical details when something goes wrong in the app.
• Device information: device model, iOS version, app version, language and time zone settings, and screen size.

What is not sent

• Your name, email, phone number, contacts, photos or location.
• Your IP address: PostHog is set to discard it, so it is not stored.
• Screen recordings: session replay is turned off.

These statistics are not used for advertising and are not combined with data from other companies. The legal basis is our legitimate interest in keeping the app working and improving it (Article 6(1)(f) of the GDPR).

App updates

The app can download small content updates (for example, fixed words or audio) from Expo, the service we use to publish the app. To deliver an update, Expo receives the technical details every download needs, such as your IP address, the app version and the platform.

This website

This website is hosted on Cloudflare Pages. Cloudflare processes your visit (for example, your IP address) to deliver the pages and protect the site. The website itself uses no cookies, analytics or trackers.

The App Store

You download Voxio from Apple’s App Store. Apple may share anonymous statistics with us, such as numbers of downloads and crash reports from users who allow this in their iPhone settings. Apple’s own privacy policy applies to the App Store.

How long we keep data

• On your phone: until you delete the app.
• Usage statistics: PostHog deletes events automatically after 7 years at the latest. We may delete them sooner.

Your rights

Under the GDPR you have the right to access, correct or delete your personal data, to object to its processing, and to complain to a data protection authority. In Belgium this is the Data Protection Authority.

Because the statistics are anonymous, we can’t tell which data is yours. Deleting and reinstalling the app gives you a new random ID, so new statistics can’t be linked to the old ones. If you have a question or request, email us and we’ll help where we can.

Children

Voxio can be used by learners of any age. We do not knowingly collect personal information from children, and the app never asks for it.

Changes to this policy

If the app starts handling data differently, we will update this page and the “Last updated” date above.

Contact

Andreas Daans, Belgium
Email: app.voxio@gmail.com