Simplenote is where I keep my plain text notes now (Notational Velocity on Mac and official app on Android). My local copy of notes reside in my Dropbox folder

Simplenote is where I keep my plain text notes now (Notational Velocity on Mac and official app on Android). My local copy of notes reside in my Dropbox folder and my (pretty much) entire ~/ is backed up to CrashPlan cloud. For notes or docs that need diagram etc I use Google Docs. Even my team uses the same (as part of the Google Apps suite). What I love about Simplenote is that it does what it says - just plain text notes. No gimmicks, no extra load and bells and whistles. But I have a feeling that they will shut it down soon. They had a paid tier and they removed it some time back. There has hardly been any update I guess and iirc they don't really update their Android app frequently either. Do they encrypt the notes at client side before sending it their servers? I would love to use a self hosted app that has such a functional and minimal interface and clean sync feature.