All current users of Dashly (=those who have paid for a subscription plan) can take part in the referral program.
Once your friend follows your link to Dashly, they will get $10 off the first subscription plan. They will be added to the list of people you've invited to Dashly. When the subscription plan is purchased, you will get $10 off the next payment.
After the first payment is done, you will see a heart button at the top of the panel:
Click on it to get the referral link.
You can share the link in Twitter, Facebook and VK.
The information about the rewards is placed under the referral link.