With billions of users worldwide and more than 330 billion emails being exchanged every day, email has come a long way since it was invented in 1971.

Today, people all over the world have a host of email clients to choose from.

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Email client market share breakdown

According to the latest data, as of August 2022, the two most used email clients in the world are Apple and Gmail. At 57.72%, Apple has the majority of the email client market share. It’s used by more than half of the world’s email users to send and receive emails.

Apart from a slight dip in April and July 2022, Apple’s market share has actually been increasing since the start of the year. It was at 57.16% in January 2022 and surpassed 60% in March 2022 before falling to 57.15% the following month.  

For some to win, others must lose. Currently, the Gmail market share is at 29.43%. In other words, under one in three email users in the world use Gmail, which is owned by Google. Gmail’s email client market share has fallen over the past year. In September 2021, its market share was 35.25%. By March 2022, this had dipped to 26.5%, before rebounding slightly in the months that followed. 

Even though it’s the second-most popular email client, Gmail’s market share is still a significant 28.29 percentage points behind Apple’s. 

Together, Apple and Gmail make up a whopping 87.15% of the total email client market share.

The third-most popular email client is Microsoft’s Outlook. It’s used by 4.33% of email users worldwide. Like Gmail, its market share has also been decreasing, falling from 5.36% in September 2021.

Fourth on the list of the most used email clients is Yahoo! Mail, which has a market share of 3.24%. This is followed by Google Android, with 1.67%, and Outlook.com, with 0.89%.

The seventh- to tenth-most popular email clients and their market shares are:

  1. Samsung Mail: 0.24%
  2. Windows Live Mail: 0.07%
  3. Orange.fr: 0.06%
  4. Web.de: 0.06%

Of these ten most popular email clients, the majority have seen a fall in their market shares since September 2021.

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