But how do you know which is the best?

Excellent Email Encryption: Proton Mail

Send encrypted emails to anyone.

Time-limited messages for sensitive information.

Screenshots from the ProtonMail email app for Android.

Some features are hidden behind the Pro license.

Storage for the free account is limited to 500MB.

If you deal with sensitive information in your email, then email encryption is a must.

Screenshots from the Aqua Mail email app for Android.

Proton Mail is one of the best-known, and most trustedencrypted email service providers.

The free account allows users to have one email address and send up to 150 encrypted emails per day.

For most users, thats sufficient, but if youre a power user, it might not be enough.

Screenshots from the Tutanota email app for Android.

Only users who have the password you provide can open encrypted emails.

Expandable Functionality: Aqua Mail

Easily select multiple emails by swiping down.

Intuitive, easy navigation.

Screenshots from the Blue Mail email app for Android.

Highly customizable display style for messages.

Many features are gated behind a Pro license.

Aqua Mail is also easy to setup and is customizable, so users can make it their own.

Screenshots from the All Email Access mail app for Android.

Aqua Mail integrates with numerous third-party add-ons, to extend the usability and functionality of the email service.

Additional features include:

Super Strong Encryption: Tuta

Encryption automatically enabled.

Unencrypted emails stored encrypted on servers.

Screenshots from the Nine Mail email app for Android.

Even attachments encrypted unless disabled.

Cannot attach files in bulk.

Does not sync with other mail services.

Screenshots of the Gmail email app for Android.

Some features are hidden behind a license fee.

Tuta is another encrypted email service.

Unlike other mail providers, Tuta requires users to create a strong password for complete the account setup.

The free account includes 1GB of storage (not expandable) and allows one user for the account.

Free account users also have limited search capabilities.

The well-designed interface is easy to navigate.

Intelligent Counter shows all or new unread emails.

Mark Read or delete items without opening app.

The app can be buggy, especially after an update.

Blue Mail is a free, well-designed email app that offers tons of great features.

It also offers support for IMAP, POP3, and Exchange, and autoconfiguration.

Setting up an account in Blue Mail is super simple.

In our test, it took three taps to set up a Gmail account.

Blue Mail also offers support for multiple email accounts.

Best for Multiple Email Accounts: All Email Access

Can access multiple mail services from one app.

Access to email providers not available elsewhere.

Smart Caller ID nice add-on that works in real-time.

Not easy to select an All Email Access account.

The user interface is a little clunky.

Includes Calendar, Contacts, Tasks, and Notes.

Automatic syncing hiccups when roaming.

Time function limited after free trial.

Its just simple, easy to use email.

Built for Android: Gmail

Import mail, send from other addresses.

Undo feature to unsend emails.

An excellent spam filter.

Some privacy concerns over Google information collection.

Gmail is the the most frequently used email app with Android devices, and for good reason.

Gmail works beautifully with Android, and its completely free.