After using Mobile Adplexity for a while just to search for the best performing ads i decided to go deeper and use it the right way by finding and copying the most successful advertisers in the field.
After a whole day of searching and playing around with the different filters (analyzing just sweepstakes ads), i gathered a good amount of information on who is doing the major part of the sweepstakes promoted in Pop traffic.
I found the three big players doing sweepstakes in pop traffic:
Sorteo-apple.xxxx.com
Exclusive-xxxxxxx.online
w.deals-xxxxxx.online
I'm going to copy the first biggest ad from each one of the advertisers (ads receiving most of the traffic during the last seven days).
The first advertiser “Sorteo-apple.xxxx.com” is promoting in Peru, Chile, Spain a win iphone 7 offer from Addiliate (Aldaniti_Apple ES). The offer is promoted mainly in PropellerAds (83.5%), in Android Phones and is occurred in average to the spy-tool by 300 times daily.
(I couldn't find that specific offer for Peru and Chile, but just for Spain. So i'm going to run that just in Spain)
The second advertiser (Exclusive-xxxxxxx.online) is promoting in Israel and France a win iphone 7 offer from Advidi (Cellebrate iPhone6s - PIN Cellcom, Orange, Pelephone - IL). The offer is promoted mainly in PropellerAds (96.1%), in iPhone and is occurred in average to the spy-tool by 300 times daily.

(For budget limitations i'm going to run the campaign just in Israel)
The third advertiser (w.deals-xxxxxx.online) is promoting in Spain and France a win iphone 7 offer from Adsimilis (Win an iPhone7 - mobile optimized [ES]). The offer is promoted mainly in PropellerAds (83.5%), in Android phones (62%) and in iPhones (38%) and is occurred in average to the spy-tool more than 350 times daily.

The offers:

After the first 24 hours i got 1 conversion of $12,55 from “Cellebrate iPhone6s - PIN Cellcom, Orange, Pelephone - IL” in Israel, with a cost of $20. And just 1 conversion of $1.5 from “Win an iPhone7 - mobile optimized [ES]” and 2 of $0.7 from “Aldaniti_Apple ES”, by spending $20.
After some optimizations on publisher level, i will keep running the Israel offer and the “Aldaniti_Apple ES” in Spain.
We have all those campaigns live in our network. Feel free to sign up as publisher on Addiliate and get started.
Thank you very much antuen for sharing your method! I'm planning on writing a post soon on how to use Adplexity for intelligence gathering. Mind if I expand on your method with a link to your original post?
Thanks again!
Amy