A different way to see who's contacting you. No guessing.

Most tools use AI to guess whether a call, email, or text is fake. ID-Truster doesn't guess. We use a digital signature all the way from sender to recipient.

Free for private usersMade in Denmark

Illustration of an envelope sealed with a shield-shaped seal and a check mark, connected to a phone and an office building

A grandmother, a mother and a teenage son on a sofa, smiling at a phone together

Private

For you and your family

Know it's really them when family and friends call or write. The app is free.

A woman at her desk looking calmly at her phone

Business

For businesses

Show your customers it's really you when you call or write.

We make it easy to check who's contacting you

You used to know who was calling from the voice, the number or the email address. Today all three can be copied. Knowing who you're dealing with takes more than it used to.

ID-Truster puts it all in one place. Calls, emails and texts, from people you know and from companies. It's like asking "Who is it?" before you open the door. A moment for both of you, and then you know.

Illustration of a phone connecting a person and an office building through the same app

Certainty and peace of mind, online too

The internet has given us a lot, and we have also lost something. You used to know the voice on the phone and the handwriting on the envelope. Certainty and peace of mind are old virtues, and ID-Truster brings them back.