I'm using Fantastical on both iPhone and iPad but so far I haven't been willing to pay the $50 that the Mac version costs. Especially considering it isn't a one-time expense. I have been using Sunrise on all platforms until Microsoft announced its death. Such a shame. Then I the Fantastical 2 trial on Mac and that didn't make me pay up. Now, I'm on the lookout for a new alternative. I simply can't stand the default app and I need a calendar on my Mac that facilitates both Gmail and iCloud.