The 18 Best Email Apps For IPhone In 2021

Over the years E-mail has morphed from a way to send electronic letters to turning into the digital hub of all we do online.

Your Facebook account is tied to an email. Your Bank account is tied to an email account even Your Amazon account is tied to an email. You may be happy with a web app like Gmail when you’re at your computer, but when you’re emailing from your iPhone, you’ll want a dedicated app for the job.

When the iPhone debuted in 2007, Apple included a built-in email app called Mail.

No third-party mail apps were available at first, but email on the iPhone has come a long way since then. The App Store is awash in alternative email applications, so now the challenge is to find the best email app for your iPhone needs.

We’ve tested the most popular IPhone email apps, and here we’ll present the best in breed.

1. Twobird

Twobird is a relatively new email app from the team behind Notability that brings a lot of unique features not seen in a lot of other email apps.

Like Spike, it removes as much as it can from email (introductions, signatures, etc) so you can focus on quickly reading and replying.

It also includes collaborative notes and reminders inside your Inbox.

In my testing, there was a lot to like about it.

The major flaw is that it only works with Gmail and Microsoft, so you are out of luck on adding iCloud or your own IMAP account to the app. If you only use Gmail, you’ll want to check it out, though. Twobird is a free app on the App Store.

Pros:

  • Combines email and to-do list functions.
  • Attractive interface that supports dark mode.
  • Inbox connected to notes, reminders, and calendar.

Cons:

  • Works with Gmail and Microsoft accounts only.
  • No built-in cloud storage.
  • A relative newcomer that needs some polishing.

2. Canary

If encrypted emails are your jam, then Canary is for you.

It’s the best iOS email app for automatically encrypting your emails. In fact, it’s the only major app that does this, and it uses your existing email service rather than requiring you to sign up for something new. Of course, whoever you’re emailing will need an email service or client that can decrypt PGP, otherwise you’ll have to send them an unencrypted email if you want them to be able to read it.

What’s nice about Canary—versus a secure email service—is that it works on top of your existing email account.

You can start using encrypted emails without having to set up a new email address: It works with all the major email providers and protocols except POP. While Canary’s encryption is its flagship feature, it’s still an excellent email client for dealing with regular emails.

It has an AI-driven Smart Inbox that automatically learns which emails you consider important.

It also offers the fancy features you’ve come to expect: customizable swipes, integration with Dropbox and other productivity apps, snooze, templates, automatic read notifications, and even a one-click unsubscribe so you don’t need to hunt for links in the footers of marketing emails.

3. ProtonMail

For anyone worried about security, ProtonMail may be exactly what you’re looking for.

The online world still poses a threat to email users, and even though Apple’s operating systems are historically extremely secure, ProtonMail gives you just that little bit extra protection. End-to-end email encryption ensures all your data and documents are safe, and an easy-to-navigate user interface makes managing secure email a breeze.

ProtonMail is also open source and completely free to use, the ideal iOS email app for anyone who doesn’t want to shell out their hard-earned cash but won’t compromise on security. If you want all the bells and whistles, though, you’ll need to look elsewhere.

Key Features:

  • Ideal iOS email app with increased security
  • Can be a little basic for certain users
  • Simple user interface
  • Open source
  • Powerful email encryption

4. Boomerang

Another popular email service that offers a great range of features is Boomerang.

With a simple, minimalist design, it’s a friendly app to get to grips with. Boomerang supports multiple accounts, but on a more limited list than some of its rivals.

At the time of writing you could use Gmail, G Suits, Outlook.com, Office 365, and Microsoft Exchange accounts, but sadly not iCloud, Yahoo or other services. If you do have a compatible email address though, you’re in for a treat. Boomerang has plenty of configuration options, with swiping right on an email in the inbox triggering one of several possible actions, while swiping left opens a menu from which you can choose one of five commands, including Archive, Move, Snooze or Delete.

One of the simplest, but useful traits, is that swiping left and right while in an open email will move you through to the previous or next message, so you don’t have to return to the inbox or stretch for controls at the top of the page like on Apple’s Mail app. At the top of the page on an open email you’ll see various options, one of which it the Boomerang icon.

Tapping this opens a comprehensive menu from which you can select a variety of times or dates when this email will return to your inbox as a new item.

Essentially, it’s a reminder, but the configurable nature of it makes the feature very useful, plus there’s a setting that will disable the entire thing if you reply to the message at any point.

Add to this Google Calendar and Outlook Calendar integration, a voice assistant for controlling and working with the app, a helpful analysis of your writing style when composing emails, support for alias Gmail accounts, email scheduling, and a great feature called Brief Me which gives you a run-down of the things you need to do that day, and you can see that Boomerang is a very impressive way to deal with email.

5. Boxer

Boxer’s main attraction is its ability to handle and sort emails in bulk using custom gestures.

It’s an ideal solution if you need to manage emails in each account individually, or in a combined inbox. This app works with several cloud apps too, including Dropbox, Box, Google Drive, and others. Overall, Boxer is more in tune with businesses and the enterprise.

For instance, with a simple tap, you can join a conference call without having to hunt down a meeting number or access code.

You can send an instant reply, swipe through your inbox using a customizable gesture, send your availability, and more. Boxer is part of VMware Workspace ONE.

6. Polymail

Polymail comes in several pricing tiers and with a host of traits geared toward professionals.

Notable features include email and attachment tracking to scheduling delivery and message templates.

No matter the account, Polymail lets you postpone emails for later reading. Like a few other often-used functions, you can access this feature from a swipe menu of customizable actions. If you’re particular about inbox organization, the Polymail inbox is strictly a plain list of emails sorted by date.

Though you can filter it to show only unread emails, it never organizes or groups itself. And while Polymail supports IMAP, it lacks Exchange account support.

7. Spike

Spike email is one of the most unique takes I’ve seen on email in many years.

It takes a cue from an app like iMessage or Facebook Messenger, and it brings that same look to email. So many of my emails are short messages (think Slack style), and Spike has built a design that helps you be more efficient.

It strips away things like headers, signatures, etc., and help you focus on just the content. It also includes a priority inbox to help keep your inbox with the items you need to see vs cluttering it up with newsletters, receipts, etc.

Another unique aspect is the Groups feature that Spike offers its users. You can create groups for work departments, sports teams, etc.

They’re similar to iMessage groups but work over email. In the Groups I have set up, it’s great to keep conversations about specific topics in one place so you don’t have to find old email threads. Spike also recently added notes and tasks to its app.

With Spike’s notes functions, you get a regular notes app, but it’s inside your email app where you can manage it with your email. You get all the features you’d want: rich text, links, comments, sharing/collaboration, and file sync (similar to how you can store files inside Apple Notes).

Spike’s task function isn’t as fully featured as Things or Todoist in terms of project management, but it’s perfect if you use a simple to-do list or are a heavy Apple Reminders user.

One of the key things missing from the mobile version is a Send Later function. It’s available in the Mac version, so I assume it will come to mobile at some point.

Spike is a free app on the App Store, and there are paid options for business users.

8. Gmail

For avid Gmail users, you should be making use of the official Gmail app. The Gmail app offers support for multiple Gmail emails, real-time notifications, and universal search that works across all accounts.

The convenient Undo Send feature is available here to prevent embarrassing mistakes.

You can even clear out your inbox quickly with intuitive swipe gestures, organize messages with your Gmail labels, and even respond to Google Calendar invites directly. There is a lot to love about the official Gmail app, and it’s definitely one you should be using if Gmail is your primary email account.

9. Unibox

Unibox throws out the standard email inbox conventions.

When you open the app, you’ll see all emails automatically grouped by sender, and then arranged by date. As soon as you tap on a name, you’ll see the most recent message and all your previous conversations with that person you can even see all the files and photos they’ve sent you by tapping on the paperclip in the bottom right corner.

If you think of email in terms of who you’re communicating with, it’s perfect. Aside from this novel take on email sorting, Unibox is relatively feature-light.

You can customize what the swipe gestures do in the settings menu, but there’s no snoozing, scheduling emails, or any of the features common in advanced email apps.

You can’t even use multiple accounts or custom signatures without paying for Unibox Pro ($4.99), and it doesn’t support POP accounts.

10. Apple Mail

Considered by some to be the best email application for iPhone, Apple Mail first hit the scene in 2004 and is a favorite of busy Mac users by default.

Of course, it’s still got plenty going for it as a standalone email app, and its integration with the macOS suite of tools makes Mail a great all-rounder. Full support for Apple’s iCloud storage brings this elder statesman into the modern era and you can easily send files of up to 5 GB.

Another plus point is the simple search feature that lets users navigate multiple POP, IMAP, Exchange, and iCloud accounts all together in the same place, helping you to find specific emails even if your inbox is overflowing. You can sort out VIP senders (which you define) and file emails to folders.

Compose your emails using rich text and swipe to take action fast. Most importantly, you get beautifully rendered emails without clutter and almost no learning curve.

Pros:

  • Syncs automatically to Calendar.
  • Comes bundled in iOS and is updated regularly.
  • Integrates with multiple email providers.
  • Beginner-friendly but sufficient for most users.

Cons:

  • Lacks customization and advanced options.

11. Spark

Spark is one of our favourite email apps, as it not only supports multiple accounts and a universal inbox, but it also has a clever Smart Inbox that sorts incoming mail into various types.

These separate out the newsletters and promotional items from those sent by actual humans, placing the latter above the former. You can also pin particular emails, which are then kept at the top of the list until you unpin them. Notifications are slimmed down, so you only receive alerts when a new message arrives from someone you know.

This means no more distractions from companies telling you about their latest sale.

You can also schedule emails to go out at a later date, and Spark will give you reminders of important emails to which you’ve not yet responded. Customisable swipe actions give you fast and easy ways to manage what you do with messages, plus Spark also supports multiple signatures so you can send either personal or professional sign offs to each email.

The app can handle a wide range of attachments, but also has the ability to link with a number of services and apps, such as Google Drive, Dropbox, iCloud Drive and others, to save attachments directly into your online storage. With the arrival of iOS 14, Spark now has a widget so you can see your latest messages at a glance, plus there’s a built-in calendar so you can do all your organisation from the app.

12. Newton Mail

Newton is another email app that looks to bring everything together into one location.

It works with several other email services, including Gmail, Yahoo, Hotmail, Outlook, iCloud, Exchange, and all IMAP accounts. Newton has many of the features we’ve come to expect in an email app, including Snooze, Read Receipts, Send Later, and Connected Apps.

It’s also compatible with the Apple Watch and synchronizes with the Mac app version. There’s also a companion Newton Calendar app to further enhance your productivity. Unfortunately, Newton costs $50 a year, but if you love the features, it might be worth the money.

You can try everything Newton Mail has to offer for 14 days.

13. Airmail

Airmail does everything, it seems, and then some.

When it comes to organization and productivity, you can organize folders by labels, turn emails into to-do items, add them to the calendar, and schedule email delivery using Exchange, IMAP, POP, and Gmail. This app also offers control over managing contacts and email customization.

Choose to block senders, undo emails you’ve sent, snooze emails, or lock your email.

Airmail also offers an easy way to send attachments from cloud storage and displays an email’s complete source code. While Airmail includes a smart, filtered inbox, its implementation isn’t the most elegant. Search is unstructured and not that smart, and Airmail could help more with smart email templates or text snippets.

Pros:

  • Sync across multiple devices.
  • Helpful technical support.
  • Easy to configure interface.

Cons:

  • Email searches are clunky and inaccurate.
  • Unclear privacy policy.
  • Requires a paid subscription.

14. Outlook

If you are used to Outlook on PC or Mac, you’ll be surprised how much different Outlook on iOS is when you first launch it.

It’s not the traditional Outlook, but a reimagining of what it should be.

Microsoft bought Acompli back in 2014 and launched the original version in 2015. They’ve kept enhancing it since then. If you want to find an app that feels like Apple Mail+, Outlook is it. It includes a smart inbox (sort between important emails and non-important ones).

It contains customizable swipes (delete, archive, etc). You can also schedule messages to show back up in your inbox. This feature is useful if you want to make an email disappear until you are back at work, etc.

It includes a built-in Calendar (negating the need for a separate calendar app) that can pull in iCloud, Google, Exchange, Outlook, and Yahoo calendars.

Because it integrates everything into a single app, you can easily share availability for meetings right inside the app. It can also work with third-party apps such as Google Drive, Dropbox, Evernote, Trello, and more.

Overall, Outlook is a really great iPhone email app.

It’s free, works with all the major accounts you’ll have, and provides a lot of great features. Now that iOS 14 supports setting a new default email app, I see a lot of companies deploying Outlook to the company-owned iPhones if they are using Microsoft 365.

15. Yahoo Mail

Whether you use Yahoo Mail or not, the Yahoo Mail app is a good contender to consider, and it works with non-Yahoo accounts. The Yahoo Mail app looks gorgeous with a fresh and clean design that’s pretty easy to use and navigate.

You can take action on individual messages through intuitive swipe gestures, customize the color and theme to your liking, send GIFs directly in messages, and more.

Some standout features include Deals View, which notifies you when deal emails are about to expire, and Travel View that displays gate changes, delays, and even cancellations. Yahoo Mail can even send you notifications when the emails come from people, so you aren’t bothered with newsletters and other unimportant messages.

Plus, Yahoo Mail gives users 1000GB of space of cloud storage, so you don’t have to worry about space, and there’s support for third-party cloud storage solutions. Despite the Yahoo Mail name, the app works with any email account and is a great email app in general.

16. MailTime Email Messenger

If you hate email and have no choice but to use it, try MailTime Email Messenger.

It turns your email threads into conversations that look and act like iMessages—down to the colors: Your senders’/recipients’ messages appear as gray bubbles, and yours appear as blue bubbles.

It even works with group emails. One quirk: if the emails run too long, you’ll need to tap View Full Message to see the whole text. It’s worth the extra tap to keep the chats scannable. MailTime doesn’t try to force all emails to fit its blue-and-gray-bubbles chat look.

Emails that aren’t from real people, like newsletters and online shopping receipts, are kept in a separate inbox and displayed normally. It’s only your email conversations that look like chats. The free version of MailTime supports up to two different email accounts (all the major ones are supported), but if you want to use MailTime with more accounts, you’ll need to upgrade to Pro.

17. Hey

Hey is a new email service from the team at Basecamp.

Hey is part app and email service combined into one. Hey offers an ‘Imbox’ that is designed to only show you the important messages, and it filters less critical messages for you to work on later.

In Hey, all your attachments are organized together into an attachment library. Hey offers a lot of great benefits to help people manage their inboxes, but it’s going to be a non-starter for a lot of users due to its $99/annual subscription and the fact that you have to completely change your email address.

Hey is a very secure service and uses Encryption at-rest, at-work, and in-transit, but not end-to-end because it’s challenging to do that with email.

Hey is also conducting external security audits.

18. Edison Mail

If you want an email client that is a bit less mainstream, Edison Mail seeks to reduce the overwhelming email “noise” by using a Spam Blocker feature similar to how calls and messages are blocked.

It simply blocks emails from undesired senders and is separate from the app’s Mark as Spam component. Other features you’ll find highly useful include selective notifications for certain senders, support for Touch ID and Face ID, package tracking alerts, and a Verify Sender component that alerts you to suspicious emails.

You won’t see any ads either — unlike Gmail and Outlook. It’s available on the Mac App Store if you want a multi-device solution.

The Edison Mail app is a fantastic email program that gets the important things right, including support for Microsoft Exchange and IMAP (Internet Mail Access Protocol).

While it isn’t the digital assistant it claims to be, it does suggest recipients based on frequency and can filter and use emails by type: booking, bills, shipment notifications, as well as email subscriptions.

Pros:

  • Can mark emails as spam and block senders.
  • Easy unsubscribe feature for email.
  • Simple user interface.
  • Responsive in syncing.

Cons:

  • Collects some user data.
  • Occasional connection issues.

Conclusion

That’s pretty much it! So, there are Best Email Apps For IPhone.

If you have any other favorite Best Email Apps For IPhone then don’t forget to share them with us in the comment below. Also, if you liked this article, Share on your favorite Social media platform.

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