I need a calendar on my phone (Samsung Galaxy S6, Android version 6.0.1) that will sync with my Google calendar. It used to do it but suddenly refuses.......! I have a Samsung Galaxy S Tab that syncs just fine, but has an older Android version, so I have to think it must be something with the Android version. I installed an app on my phone called aCalendar+ that picked up the Google calendar when I installed it, but won't sync for any new items, so I'm wondering if I'm missing a setting? Can anyone please advise me on either setting or a suitable calendar app? Much appreciated.