Are you searching for an email client for your iPhone? If so, you’re in luck. There are plenty of awesome email apps available. But what is the best email app for iPhone? After all, email clients can take time to set up, so you’ll want to make sure that you download the right one the first time.

As someone who has tried dozens of email apps for iPhone, I’ve picked the ones that stand out above the crowd and explained what makes them so great. So if you’re looking for the best email app for iPhone, check out these five terrific options.

Essential Features in an iPhone Email App

Most email apps will provide the basic features you need to send and receive messages, as well as getting notifications. Here is a list of the features that we look for in an email client, that each of the options on this list provides:

  • Alerts, notifications, and badge icons
  • File and photo attachments
  • iPhone and iPad compatibility
  • Free or deeply discounted

1. Spark

The Spark email app is a definite favorite app in this category. It offers an attractive design, threaded messages, multiple email accounts, a built-in calendar, and color-coding for your accounts.

Spark’s standout features include:

  • Smart Inbox: View a summary of all the new messages from each of your email accounts.
  • Delegation: Assign emails for others to take an action on.
  • Snooze: Snooze messages for a later date or time and receive an alert when the time comes.
  • Reminders: Set a reminder for an email, so you don’t forget to follow it up.
  • Quick Replies: Tap to reply with a smile, a thank you, an agreement, or your own custom quick reply.

This isn’t the end of the list of features for Spark, either. You can also create signatures for all accounts, set up and use email templates, use a passkey lock specific to the app, sync with your other devices, and much more.

Download: Spark (Free, subscription available)

2. Airmail

Airmail is an excellent iPhone email app that integrates with storage services like Google Drive and Dropbox. It also integrates with productivity apps like Evernote and Todoist. The app gives you a long list of actions you can take on emails that make inbox management a breeze.

Below are some of Airmail’s standout features:

  • Advanced email actions: Beyond moving, applying labels, and muting or blocking, you can create PDFs, unsubscribe, move messages to another account, and send them to Reminders or Calendar.
  • Custom actions: Create actions for simplified workflows.
  • To Do: Start a list of tasks right from your emails using the built-in to-do list feature.
  • VIP list: Add email senders to your VIP list.
  • Password protection: Set up a password and choose the amount of time before the app prompts you for it.

With a nice array of features that make taking action on your emails easy, Airmail is a good option for any serious mail user on iOS. If you’re interested in multiple accounts, snooze, send later options, and premium support, check out the Airmail subscription plans.

Download: Airmail (Free, subscription available)

3. Polymail

For a powerful email app that’s similar in features to Spark, take the time to check out Polymail. You can set up multiple email accounts, enable two-factor authentication, and enjoy a host of other features.

Have a look at some of Polymail’s coolest features:

  • Email click tracing: Ever wonder if your email actually gets delivered? Polymail will track and let you know when a message has been read by the recipient.
  • Customizable swipe actions: Organize your email inbox with simple, customizable swipe actions.
  • Read later: Mark emails to read later for any date and time that works best for you.
  • Send later: Schedule emails you compose to be sent at a certain date and time.
  • One-tap unsubscribe: Getting bothered by promotions? Polymail allows you to unsubscribe with ease.

And that’s not all! You can automatically send emails to the Archive after you read them, view an Activity Feed, create and apply labels, and much more. Polymail is a terrific, full-featured email app for iPhone.

Download: Polymail (Free, subscription available)

4. ProtonMail

If security is your number-one concern in an email app, then there are several great reasons to choose ProtonMail. With its end-to-end encryption and zero data access, you’ll love the other security features ProtonMail offers.

Here’s a summary of how ProtonMail stands out:

  • Password-protect emails: Secure an email you’re sending with a password and include a hint for the recipient.
  • Send encrypted attachments: ProtonMail, aside from sending encrypted emails, also sends encrypted attachments.
  • Self-destructing messages: Set a time limit on an email so that it disappears after a certain number of days or hours.
  • Protection: Enable Touch ID or a PIN. Plus, you can set an automatic lock for the app after a specified number of minutes.

With ProtonMail, you can rest assured that your messages and data are safe and secure. If you’re interested in upgrading your account, you can purchase a one-year plan within the app.

Download: ProtonMail (Free, in-app purchases available)

5. Canary Mail

Another security-centered email app to check out is Canary Mail. Similar to ProtonMail, Canary Mail offers end-to-end encryption. However, unlike ProtonMail Canary Mail allows you to use your own email accounts, rather than having to create a new account.

Canary Mail also includes a built-in Calendar, so it has many of the features of a traditional email client but with safety as a priority.

Canary Mail offers:

  • Zero-setup encryption: No setup is needed to begin sending encrypted emails.
  • Read receipts: Similar to iMessage, you can see exactly when a recipient reads your email.
  • Smart notifications: Configure Canary Mail to only give you notifications for important messages.
  • Favorites: Mark people as favorites and then access them in one place.
  • Snooze: Snooze emails for a date and time you pick to follow up.

To go with these great features, you can also use Canary Mail in dark mode and access your iOS calendar within the app. This makes Canary Mail a great all-in-one app that focuses on security.

Download: Canary Mail (Subscription required, free trial available)

What Is the Best Email App for iPhone?

Each of these iPhone email apps is excellent in its own way. Of course, pretty much every mail app has the basic features you need. So it’s those extra bonus features that will turn an email app like one of these into your favorite.