This app was mentioned in 10 comments, with an average of 2.20 upvotes
Neat! But I personally use LiveChart to track when the anime is gonna aired and will give notification. I personally don't want to clutter my calendar but I can see some people find this useful.
Try LiveChart.me (it is a site and an app), shows upcoming anime by daily schedule and seasons and where it's streaming if it is. You can mark which ones you are interested in and it should post a notification when it is close to when it airs. I use it to find series that may not have been picked up by the normal US streamers (crunchyroll/netflix/amazon) so that I can tell if I want to look for them on alternative sites or not. https://play.google.com/store/apps/details?id=me.livechart.android
I use Livechart. It notifies when the episode airs in japan, but the official (and most unofficial) subs shouldn't be too far behind.
Livechart's android app has a notification function, you just have to select the series you're watching. I think it also lets you log how many episodes you've watched.
Disclaimer: I'm affiliated with LiveChart.me
LiveChart.me has an android app with a daily schedule of anime and episode countdowns.
https://play.google.com/store/apps/details?id=me.livechart.android
LiveChart.me...
There is an app part to this?