MADRID | By Jaime Santisteban | 22 million Spaniards are active apps users and 4 million apps for smartphones, tablets and TV are downloaded every day. No matter the economic crisis, “in this harsh work environment, app development still has an increasingly strong potential,” Microsoft analysts point out. As the industry leaders gather in Barcelona for the Mobile World Congress starting on Monday – they’ll make the deals that we’ll hear about for the rest of the year, by the way- brands are complaining about how hard it is to monetize apps in a country too used to download them without paying a cent.