I use this because it has great apps on mobile and mac and also the accounts sync between the apps so you don't have to do it twice. It also sorts emails similar to what gmail does and i find that really cool. You also can schedule emails for later read.
Spark has been great for me on iOS. I'll be honest, I use Airmail on desktop but on mobile Spark's performance and simplicity has kept me a user. I've never experienced any problems with snoozing, conversations etc. Plus, unlike Google Inbox, it supports pretty much any email account. I utilize Zoho for personal email so that is huge. Good luck!
Found Spark after Polymail switched over to a less than enticing paid subscription model. Been super happy with Spark though! Its reliable, quick, and simple. It doesn't have any big heavy lifting features, but for free I don't think there's anything better right now. Spark if you're reading this! Find a way to integrate people's calendars into your App. I bet it would explode in popularity ;)
Just spent a couple of weeks testing Newton, Polymail, and Spark after a couple of years with Airmail. Sometimes you just want to test the waters. Airmail still remains the best for me and my routines. The others offer great features and nice looks, but I wasn't able to find a reason to switch in the end.
Quick and responsive, Airmail is a well-designed email client for Mac. Comes out of the box with loads of integrations to other services you might use (Trello, OmniFocus, Google Drive and more). Supports GTD-type tagging of emails as to-do tasks too!
Lets me hold multiple email accounts, they add new features all the time, Can't imagine going back to anything else
Been using Polymail. Beautiful UI, great features with the same lightweight, seamless interface that you should expect from a native email client. Email tracking, snooze, attachment tracking, contact profiles, send later, etc.
Great UI that keeps things clean and polished. Beautifully designed UX that lets you focus on your desired emails and gets rid of the clutter. It provides quick actions to really make managing your email a breeze. I really enjoy it, if you can't tell.
Great product with great features (send later, read receipt, reminders, undo...), I love it!
I love Astro. The features are intuitive to learn and the UI is really clean. It helps me keep the emails I need to worry about in focus and the emails that I don't out of focus. The reply tracking feature keeps me from forgetting to follow up on emails and the open tracking feature lets me know if someone has actually opened my email or not.
I like the AI in this one, helps me declutter my inbox by unsubscribing to old newsletters that I don't read anymore, reminds me to send emails and lets me know when an important message arrives.
Inbox is great - it's easy to sort out what matters from promotional junk mail while still making everything easily accessible. It brings all of the great features from GMail, along with extra features (delivery tracking, reminders, snoozing, special ways to see your subscriptions, etc).
Excellent for those working with a large number of email accounts.
Handles multiple email accounts very well, and gives great performance at the same time !
I've tried several of the others mentioned above (like Nylas and Spark) but I keep coming back to Mailplane because it's so easy to use. It's essentially a wrapper around the google interface + some goodies like unread counts in dock / menu bar + native bindings. There's another similar app out there called Kiwi for Gmail, does about the same, I don't know what differs them.
It's reliable, supports multiple accounts from any provider, and comes with rich tooling on information protection, calendaring and tasks. Updates frequently and supports integration with Office365. Been using it as the only mail client on my Mac and couldn't be happier.
As a heavy user of Google Inbox, I prefer using a standalone inbox client instead of a browser tab for my emails. Wavebox does a really great job for that. Plus Wavebox also allows you to include Google Drive, Outlook or any other web apps you use a lot right into the Wavebox app.
I'm a Postbox user for years and this has been the best desktop client I've used thus far. You can create smart mailboxes, customized signatures based off of provided templates, open inboxes in tabs, and install plugins that allow you to extend Postbox's functionality, like attaching Dropbox or Box files to your messages.
I love Fluid. I am able to make apps out of my various email provider accounts. It's really handy. The only downside is that Im having trouble incorporating LastPass to function within the app, so sometimes I have to add the login/pass manually. But its GREAT for websites you visit on the reg.
Thunderbird has more customization than any other Email client on macOS... If you're having trouble believing me then look @ mozilla.org/en-US/thunderbird/features/ If you're looking to fully customize your Email experience then use an open-source client. @mozilla