Sigma Dos by Trustsurvey

Features Sigma Dos by Trustsurvey

Sigma Dos by Trustsurvey.
The best survey app.
Your opinion is very important for us.
Take part in our surveys and get sigcoins and redeem them!Activate notifications and we will notify you with the most personalized surveys for you!The Sigma Dos by Trustsurvey app is the Sigma Dos survey app that has the best surveys on the market.
For each survey you answer, we will reward you with sigcoins that you can exchange for products in our product catalog, chosen in detail for you.Also, if you invite your friends, you will both be rewarded.Enjoy our app!