Newton Mail vs FairEmail

Gmail, Yahoo Mail, Outlook, iCloud, Google Apps, OWA, Microsoft Exchange, Office 365, AOL and other IMAP accounts.

CloudMagic saves settings in the cloud. When you switch devices, the app simply pulls your setting from the cloud.

Intuitive, easy to use user interface.

Option to view one inbox for all your email accounts.

A feature called "sync" allows downloading emails locally on a per-folder basis. That will allow accessing them while offline, keep them always up to date, provide faster search, show unread email count and show push notifications as soon as new messages in those folders pop up.

It's possible to lock the app behind a four digit passcode.

It's possible to archive, delete or mark emails as read from the notification tray or with swipe gestures.

Cloud Magic supports sending notifications to Android Wear devices, allowing the user to easily see their mail without having to take their phone out.

It's possible to "hide" a message for a set amount of time, which gets the message out of your way until you're ready to deal with it.

Get notified when the recipient reads the e-mail.

CloudMagic has 'cards', that allow quick interactions with other services, like Evernote, MailChimp, Salesforce, Trello, etc. And unlike similar integration, these interactions happen within the app itself.

The app is capable of searching through all of your email and cloud accounts to find specific information. The results show up as they are typed in.

Newton mail offers a 14-day free trial.

Multiple identities per account, notifications per account or contact.

It is actively maintained. The used libraries are up to date and bugs are fixed quickly.

There are no trackers within the app and trackers sent with mails are disabled by default. This app lets you read and compose emails with your privacy in your very own hands.

Privacy features are excellent.

~ 20 MB.

Supports both OpenPGP and S/MIME encryption for total privacy.

Allows to configure maximum size of email downloaded immediately.

Some HTML mails may show different links and link texts, this app however will show you the real link before opening, protecting against phishing and scams

Some domain names may use non-ASCII characters looking similar to the latin alphabet (e.g. some cyrillic characters). This app will show you the punycode representation of the domain, if that is the case and thus protect you against phishing and scams.

Some HTML mails may include ressources that can track you. This app doesn't load them by default, but reformats the text, increasing both privacy and readability.

There are open standards for any email provider to show how an email client should connect to the server. This app supports both RFC 6186 as well as Thunderbird Autoconfiguration standards.

Supports authenticating with the mail server using OAuth, thus increasing security.