What is the best third-party app to use for a "refer a friend" type Facebook contest?

Many, depends on what you want to use them for:

• Offerpop
• Wishpond
• Woobox
• Shortstack
• ReferralCandy

Good luck!

I am surprised at the replies of "professionals" who have no idea what the question means.

Antavo is good one

It has a free trial version and other packages start at $25.

Features:

invite friends through their social media channels (Facebook, Twitter, tumblr and email) after they have entered.

- Bonus points for sharing

- Unique link to share in email

- Auto message if a friend decides to enter from their shared link, then the participant will receive an email about the amount of bonus points they will be awarded.

Know in this tim i used gmail to connect with people and another social medi

thanks for invitation   

I do not beleive that there is such as thing for only refer a friend, however every app can have the same feature via other connections integrations such as gmail, or linked in account or anyother social media 

I fully agree with Merwyn Machado's submission.

Thanx for the invitation

Realy i do not know !!

But thank you for your good question and for invitation

Candy Crush 

Saga 

linkedin 

twitter