Facebook-owned Instagram may be coming with a voice and video calling option for the users as Instagram APK (Android Application Packages) has hinted for a similar features. In the codes, there are files captioned with video &amp; call and they are symbolized with icons of phones and cameras on it. The APK file includes all the supported codes of the application along with some of the unactivated or unreleased features.In the APK, there are files showing the codes that the company has generated for particular features but not activated yet. The recently updated APK includes the files labeled with a phone and camera icons which reflects company&rsquo;s intentions. The XDA analysts have also spotted a couple of strings in the APK supporting the calling feature presence. In case, the photo-sharing platform pushes the video &amp; voice calling feature, Snapchat has to prepare for further damage. Although Snapchat also offers a video calling feature, but it is just another victim of the app&rsquo;s unfriendly user interface. The feature requires the user to select a friend&#39;s profile and tap the call button on the particular chat screen.However, this isn&#39;t the first time we are hearing about Instagram adding calling feature to the app. In January, Wabetainfo spotted the video and audio calling feature image which was internally tested by the company. Back then, Instagram denied the addition of any calling feature to the platform and didn&#39;t give any official announcement yet. But, as the APK is available publicly so the company didn&#39;t intend to keep it a secret for any longer.The feature will most likely to push the Snapchat&rsquo;s reducing popularity in the coming time. Releasing the new feature when the users are struggling with the Snap&rsquo;s confusing redesign, Instagram will be able to give one more reason to stop opening Snapchat. As Instagram already offers the lenses for camera captures, it is quite obvious the video calling app may come with the support of those lenses.