I’ve been looking for a simple note-taking app on Android. There are lots, I’m sure, but the default “SNote” that is included on the Samsung flavoured phones doesn’t meet the grade when it comes to synchronisation and general availability of the notes.
Google Keep allows you to quickly add notes and check lists. It is web based, so available everywhere your browser is, although there is an app for Android (not iOS, but you can make a shortcut on your home screen to the site).
Synchronisation is good and there are a few nifty features including OCR for uploaded images.
I don’t pretend that this is even nearly a replacement for Evernote, but it is a quick and easy tool to use.