This one we get often, when a Kontrak is created we do not automatically send the other users mobile a link, we found that this would often be mistaken for spam and deleted so instead we created an export button (send Kontrak to (your contact)) which will create a notification in your native phone app.
Sending the link from your trusted number to the other party avoids scammers from pretending to be Kontrak Social and keeps your Kontraks secure.
The message will contain a simple link to the app or play store which will advise them to download the app and that there is a Kontrak pending linked to their phone number.