@delta I considered myself "tech-savvy", but DeltaChat was my first software of that kind (e2e private messenger) and my contact was far from me, and not a "tech-savvy" person. So it was not obvious for me that I had to instruct my contact who is far away about additional "off-the-band" actions need for us to add each other to contact.
Now i aware of all that, but my contact got discouraged with that complexity and don't want to try again.
Have to keep using whatsapp (it sometimes get blocked).

@koteisaev sorry it didn't work out. IIt's clear there is room for improvement, and to make it more obvious how to setup contact. Currently, it helps a lot if someone guides the process for a group aka "Now click this link/scan this QR to join our group" after which the person immediately has secure contact to everyone in the group. Already, we spent hundreds of hours to arrive at where we are. Will be some effort to improve it further across all platforms.

@koteisaev no worries, we already discussed several possible improvements. It will take some time to get around to tackle them. Onboarding and getting in contact are topics worth getting back to.