What Adyu is
Adyu is a studio for making email signatures. This page says what we keep, why, and what we never do.
What we keep
- Your account. Your email address and a password hash, or your LinkedIn name and photo if you sign in with LinkedIn.
- Your signatures. The details you type in (name, role, company, contact links), any photo you add, and the design you built.
- Your published image. When you press Publish we store one image of your signature at a public web address, so mail apps can show it. Anyone who has that address can see the image.
- Your plan. Whether you are on Free or Forever.
The AI designer
When you press Design my signature, we send what you gave it to an AI provider to design three options: the website or LinkedIn link, the line you wrote, the text and colours we read from that website, and small copies of your logo and photo if you added them. Depending on setup this is Anthropic (Claude) or Groq. They process it to answer that one request; we do not store the request, and it is not used to train models.
Removing a photo background happens entirely in your browser. The photo is not uploaded for that.
Live signatures
If you use live signatures, the image and links in your emails load through Adyu. When someone opens or clicks them we count it, with the mail app type and country. We do not record who the person is. Repeat opens from the same place within a minute count once, and link checkers in company inboxes are left out.
Error reports
If a page breaks in your browser, we record the error message, the page and the browser type, so we can fix it. We keep these for 30 days.
Add to Gmail
If you press Add to Gmail, Google asks you to allow Adyu to manage your basic mail settings. We use that permission for one thing: to set the signature on your primary Gmail address to the one you just published.
- We do not read, send, delete or store your emails, contacts or any other Gmail data.
- The access Google gives us stays in your browser for that one action and is released straight after. It is never sent to or stored on our servers.
- You can remove Adyu's access at any time from your Google Account, under Security, then Third-party connections.
Adyu's use and transfer of information received from Google APIs adheres to the Google API Services User Data Policy, including the Limited Use requirements.
What we never do
- We do not sell your data.
- We do not use your photo or details to train AI models.
- We do not show ads.
Where it lives
Accounts, signatures and published images are stored with Supabase. The site is served by Vercel. Fonts load from Google Fonts.
Deleting your data
You can delete any signature from the studio. To delete your whole account and everything in it, write to us from your account email and we will remove it.