This has happened to me on multiple occasions and on multiple devices. I'll use the Google keep update as an example. When it became available, I manually updated on my Nexus 5. It seemed to do what it was supposed to but here I am a few days later and it has popped up as an update again. Why does this happen? For reference, I update my apps manually and not automatically.
Sent from my Nexus 5 using AC Forums mobile app
Sent from my Nexus 5 using AC Forums mobile app