5) Evernote

Evernote's star has waxed and disappeared to some degree over its nine year history, yet we keep on loving it for its cross-stage adjusting, its adaptability, and the host of highlights that it offers, some of which you may have overlooked—like penmanship acknowledgment, introduction mode for the extra large screen, and simple note cutting from pretty much anyplace.

Freemium for Android and iOS.

Other Post :

Ep01: Dropbox
Ep02: Google Photo
Ep03: Dark Sky
Ep04: IFTTT