instaGC is a GPT site with many offer walls. You can earn points there by doing offers, surveys or watching videos. Their offer walls include; Acorn, AdGateRewards, AdWall, Appen, HideoutTv, HyprMX, OfferToro, PeanutLabs, Personaly, Seekgg, TheoremReach, KiwiWall, RevenueUniverse, WallAds and their own instaGC wall.
They have many different gift cards available including amazon and Walmart and Paypal too.
(updated 6/25/2020)
