Viral Loops have been AMAZING for a couple of different campaigns we've been doing at Product Hunt, and the team is so helpful. The tools they have to help people to share and encourage virality really do work. I recommend 100%.
One of the best referral marketing solutions out there to create viral campaigns for your startups.
- If you prefer a one-time charge for the full campaign, Maître offers a $79/campaign package.I used Maitre. Super simple to install as it's a widget that can be embedded on any web page. The design/font is adapted from the block you put the code into, however, you can customise most of the stuff from your Maitre dashboard. It also integrates natively with MailChimp and supports webhooks & callbacks, so that you can really customise it they way you want.