Get ready for an adtech IPO rebound

Consumers are spending more than ever on mobile apps.Anusak Laowilas/NurPhoto via Getty ImagesThe "year of mobile" may finally be upon us.Mobile adtech firm Liftoff filed to go public this week.Industry experts predict other mobile ad firms will follow, ending an adtech IPO drought.Could the adtech IPO drought be coming to an end?This week, Blackstone-backed mobile adtech firm Liftoff filed to go public in the US, potentially ending a yearslong freeze that has seen only one major pure-play adtec