Quite similar to Microsoft Outlook, Nine offers a bit more customisation for its users. It gives a great experience via the interface, which is very clean and doesn’t get cluttered – even after customising it to your needs. To secure your emails, it can integrate with your fingerprint lock. Although it’s primarily aimed at Exchange users, you can use it with other email servers as well. After a few tweaks it can be the real deal, and with tasks sync, it’s easy to turn it into a handy mobile organiser.