1 I was reminded with the release of Mailbox for Android of some screenshots of popups I’ve been collecting since January.
2 Sol Calendar and Noom are two apps that do this particularly well in my opinion.
3 L-R: Mailbox, Dropbox, Runtastic Heartrate Pro, Sol Calendar L-R: Southern Rail, AirBnB, CloudMagic, Noom There’s some very simple but beautiful des..