I checked it in many devices, in almost all it is working without any issue. But when checked in iPad with OS version 9.3.5, first time launch causes crash. i have no idea why it is crashing. I have checked a lot for the solution, but couldn't find any. The log from XCode when running is
2017-07-03 11:58:12.334 [10543:4215404] DiskCookieStorage changing policy from 2 to 0, cookie file: file:///private/var/mobile/Containers/Data/Application/C264816D-2744-4D26-BC6A-46B3BEF8DA46/Library/Cookies/Cookies.binarycookies
2017-07-03 11:58:12.498[10543:4215404] Apache Cordova native platform version 4.0.0 is starting.
2017-07-03 11:58:12.501[10543:4215404] Multi-tasking -> Device: YES, App: YES
2017-07-03 11:58:12.676[10543:4215404] Using UIWebView
2017-07-03 11:58:12.684[10543:4215404] [CDVTimer][handleopenurl] 0.398993ms
2017-07-03 11:58:12.692[10543:4215404] [CDVTimer][intentandnavigationfilter] 8.102000ms
2017-07-03 11:58:12.693[10543:4215404] [CDVTimer][gesturehandler] 0.422001ms
2017-07-03 11:58:12.736[10543:4215404] [CDVTimer][splashscreen] 42.403996ms
2017-07-03 11:58:12.764[10543:4215404] [CDVTimer][statusbar] 27.370989ms
2017-07-03 11:58:12.769[10543:4215404] [CDVTimer][keyboard] 3.852963ms
2017-07-03 11:58:12.772[10543:4215404] [CDVTimer][localnotification] 2.893984ms
2017-07-03 11:58:12.773[10543:4215404] [CDVTimer][localnotification] 0.070989ms
2017-07-03 11:58:12.773[10543:4215404] [CDVTimer][TotalPluginStartup] 89.882970ms
2017-07-03 11:58:13.556[10543:4215404] Resetting plugins due to page load.
2017-07-03 11:58:15.216[10543:4215404] Finished load of: file:///var/containers/Bundle/Application/D2B7D0DC-8697-4605-B0FC-B72CA832E4F3/appName.app/www/index.html
2017-07-03 11:58:16.653[10543:4215404] THREAD WARNING: ['Device'] took '15.490967' ms. Plugin should use a background thread.
I know it shows a thread warning, but they say it can be neglected here
I tried this stack overflow answer also to remove the warning. But that too couldn't fix the issue. My Cordova version is 6.5.0.
Thanks to this post, at last I solved it. Removed old ios platform & updated it with the new. Now its working without any issue