Privacy.
Last updated 10 September 2026.
Thumb is made by Wireside Studios Ltd in Kent, UK. This page says what we collect on this site and in the app, where it is kept, and how to have it removed. It is short because there is not much.
This website
If you join the beta list
We keep the email address you gave us, the time you gave it, which form on the page you used, the page that sent you here if your browser told us, any campaign tags in the link you followed, and the name of your browser. We use these to invite you to the beta and to tell you when Thumb is ready, and to learn where people hear about us. We do not send anything else, and we do not share the list with anyone.
You are on the list because you asked to be. Write to us at the address below and we will take you off it and delete the row.
Counting visits
We count page views, which button was pressed, and how far down the page people read, so we can see what is working. A visit is tied to a random number that exists only for that page load. We do not record IP addresses, we do not set cookies, and we do not store anything on your device. If your browser sends a Do Not Track or Global Privacy Control signal, we do not count you at all. Vercel, which hosts the site, also counts visits for us; it does this without cookies and does not give us IP addresses.
Because the site uses no cookies and stores nothing on your device, there is no cookie banner. There is nothing to consent to.
Where it is kept
The beta list and the visit counts are in a database run for us by Supabase in Ireland, in the European Union. The site itself is served by Vercel. Both work for us under written terms and neither may use the data for anything of their own.
How long
The beta list is kept until the beta ends or you ask to be removed, whichever is sooner. Visit counts are kept for twelve months and then deleted.
The app
Thumb is not released yet. Before it is, this page will say exactly what the app does with your mail. The rules it is being built to are already decided, and they are these.
- Your mail stays in your Gmail or Microsoft account. Thumb never stores the body of a message. It keeps who a message is from, its subject and a short snippet, so it can show you the card.
- Done means archive, never delete. Nothing is ever deleted from your account by Thumb.
- Nothing is sent without your tap.
- The keys that let Thumb read your mail are held encrypted, and the app never sees them.
- When you reply by talking, speech is turned into text on your phone, not on a server.
- What Thumb does keep is processed in Ireland, in the European Union.
Your rights
Under UK data protection law you can ask to see what we hold about you, have it corrected, have it deleted, or object to our using it. Email us and we will do it. If you are not happy with how we handle that, you can complain to the Information Commissioner's Office at ico.org.uk.
Who we are
Wireside Studios Ltd, Kent, United Kingdom. The person responsible for data is Farhan Baig. Write to farhan@wiresidestudios.com.
Changes
When this page changes, the date at the top changes with it. If the change is about the app and you are on the beta list, we will tell you by email before it takes effect.