I'm tried of how terrible Gmail is. Id like an email client with folders or categories. If it can sort them automatically (like how Googles now defunct inbox app used to) that would be even better.
Edit: in a couple days or whenever the activity on this post slows down. I will update this post with a list of the most recommended email app.
I use FairEmail. The free version already has fairly advanced features, it's open source and ad free, and you can customize it to your liking. Even the paid version is not a ripoff and feels like you are actually supporting the developer instead of throwing money at a greedy company.
You can create folders and labels, but you need to go to the web version in order to make rules, but it all syncs up with the mobile app aswell. The website also works fine on mobile.
I recently switched from gmail to protonmail. I might start paying for the cheapest subscription at some point once I fully migrate over. The mobile app is really sleek and I think it is better than gmails mobile app.
I use K-9 Mail. It's the mobile version of Thunderbird by Mozilla and it's about to get rebranded as that when Thunderbird is updated in the next couple years.
Been using Nine on my personal device, as Outlook was horrible at syncing with IMAP accounts (only synced on demand, never in the background). On my work device, I do use Outlook, but with an O365 account it does work as intended.
To be completely honest, Outlook is more user friendly (and free), but Nine can be customized in greater detail. If not for the sync headaches, I likely would've stayed on Outlook, I'm not a mail power user, which is where Nine shines.
I used Nine for work email for years; it has the fewest "deal-breakers" in an email app that I've ever tried. Unfortunately, my company changed to Exchange Online and now only allows the official Outlook app.
As someone else mentioned, it's UI is maybe a little cluttered. However, it's also got the all the features I wanted. If you favor clean UI over features, look elsewhere. Otherwise, it's worth the price of admission.
I use Fastmail on the web, and Aqua Mail as my Android client.
The joy of using almost any enail servie other than Gmail or Outlook is that you can use basically any IMAP client you want :). Yes, I know that they both also support IMAP, but it never seems to work quite as well as one might hope.
I was using Spark for the past few years because it was the closest thing I could find to Inbox that supported non-Gmail emails. A few months ago they put out a major update (v3) that completely borked it for me. It constantly crashes on both iPadOS and Android, so I've moved onto K-9 Mail and am waiting for Thunderbird to come out on iPadOS.
I didn't use K-9 for the longest time because I had a poor experience with it the first time I tried it many, many years ago. Between then and now it looks like they refreshed to Material Design and have significantly improved the UX. I'm happy with it.
Is there an email client that can sort emails by Primary, Social, and Promotions like how the Gmail client does?
Also when using another client to send an email, all the email contacts don't get autofilled like how gmail has it.
I've just started using spark, and it seems pretty close.
It has 'newsletters' which is basically 'promotions', and 'notifications' which is more of the important stuff like eBay and Amazon receipts and Google security notifications because you signed into a new email app 😂
I love Apple mail. Super fast search through years of email, easy drag and drop between accounts, nice redirect feature. Unfortunately, I’m a Windows user at home and just can’t switch for one email client. I do use Macs at work though. Yeah, Gmail is a drag.