Newly discovered files found deep inside of Instagram (by people far smarter than me) reveal that the popular social networking app could be preparing to integrate voice and video calling in the not-so-distant future.
Files buried in Instagram and the Instagram Direct standalone app’s Android Application Packages (APKs) are files and icons for “Call” and “Video Call”. APKs often show files for unreleased features that are lying dormant in an app waiting to be surfaced when the company is ready to launch them.
This would put Instagram in an even bigger competition with Snapchat. Snap had launched video calling back in 2014.