(c)iStock.com/jirsak To require an internet connection for mobile applications is to live in the past. If apps rely on a connection, odds are high that the experience will be sluggish and unpredictable. To avoid reliance on the network, providers of databases and cloud services have started to add synchronization and offline capabilities to their mobile offerings. Solutions like Couchbase’s Couchbase Mobile, Microsoft’s Azure Mobile Services, Amazon’s Cognito, and Google’s Firebase...