Sky Safari hangs on execution - splash screen comes up & then disappears after 10 sec. Double tapping home button shows app splash screen is still visible in the background; however, tapping it just repeats the process.
I've done searches and followed the delete and re-download app suggestion (SkySafari 5 pro IOS freeze up - Skaiser3: October 24, 2017 17:33). This works for a few days (2-4 executions of SF), but after that, execution freezes resume. App deletes were done in iOS 12, 13 & 14 - numerous times in each iOS. always the same result. This started after one of the iOS 12-updates. All was OK before this.
Recently, phone was reset (data deleted) for apple repair work - the same issue was encounter after repairs and new iOS, 15.1.