Privacy Policy

Last updated 22 October 2026

Attention Span Lab (attentionspanlab.com) is a free focus-training web app made by Liju Thomas. This page explains what data the app uses and where it goes.

The short version

Your profile, focus sessions, distractions, journey progress, settings and Focus Check results are stored only in your own browser (browser storage on your device).
The app has no server and no database. None of that data is sent to us.
There are no ads and no tracking or analytics tools.

Signing in with Google or Facebook

Signing in is optional. If you choose "Continue with Google" or "Continue with Facebook", that service shares your name, email address and profile photo with the app. The app uses them only to show your name and photo, and stores them in your browser alongside your profile. They are not sent anywhere else.

Google and Facebook handle the sign-in itself under their own privacy policies: Google Privacy Policy and Meta Privacy Policy.

Other services the page loads

Hosting: the site is served by Cloudflare, which processes standard request information such as your IP address to deliver the page.
Fonts: typefaces are loaded from Google Fonts.
Sign-in: Google's and Facebook's sign-in scripts load only when sign-in is offered.
Feedback: the "Share feedback" button opens a Google Form on Google's site. Only what you type into the form is sent, and it goes to Liju Thomas through Google Forms. Nothing from the app (your profile, sessions or scores) is attached. Leaving an email address is optional.

Deleting your data

In the app, open Profile → Delete all my data. This removes everything the app stored in your browser.
Clearing your browser's site data for attentionspanlab.com does the same.
To remove the app's sign-in access, use your Google account connections or Facebook's Settings → Apps and websites.

Because nothing is stored on a server, there is no copy of your data for us to delete.

Not a medical service

The Focus Check and reports are for curiosity and self-tracking only. They are not a medical or diagnostic test.

Changes

If this policy changes, the date at the top of this page will change too.