I've been an avid user of Mozilla Thunderbird email client on my laptops, for about a decade now. Specially after I started using several emails, which make managing them through a webmail impractical.
A few years ago I started to check my emails though my smartphone more often, and the email apps I settled on while usable didn't actually measured with I came to expect using Thunderbird. I knew that team behind Thunderbird was on their way to create an app for iOS and Android, but it was a work on progress.
Until this week, when the app was release as a beta for testers on the Play Store. After digging around a bit, I found that it was stable enough to give a try. So far, it has been quite a great app for me. It just works, while there are some features missing.
The main one I'm looking forward, is being able to sync it with my desktop app. I do that with Firefox, and find it useful for my user case. Being able to both apps seamlessly is quite useful for me, since I can use the device I have at hand.
Being able to have a more granular controls on how to theme the smartphone app, is something I don't need to have, but it would be nice to have.
While I still have to use the app for more time to better understand it, and how it fits my needs, so far it has been the best email client I've used on an smartphone. With new updates, I hope it keeps making it better and it becomes my go to email client app on Android.
