Top Email Clients by Market Share


Email clients play an important role in our digital communication, as they are our interface for sending, receiving, and managing emails efficiently. Whether for personal use, business communication, or marketing, the choice of an email client can have a significant impact on productivity.

In this article we'll take a look at the leading email clients by market share, offering insights into their popularity and features.

Email Client Market Share Statistic Highlights

  • Apple Mail: Apple Mail leads the global email client market with a 56% share, driven by its integration with the Apple ecosystem and increasingly privacy-focused features.
  • Gmail (Google): Gmail, with a 32% market share, is a dominant player known for its user-friendly interface, robust security, and seamless integration with Google's suite of services.
  • Outlook (Microsoft): Outlook holds a 4% market share and is popular for its use in both personal and business contexts, offering professional features and tight integration with Microsoft's productivity tools.
  • Yahoo! Mail: Yahoo! Mail maintains a 2.5% market share with its long-standing presence, 1 TB of free storage, and integration with other Yahoo! services.

Overview of Email Clients

Email clients are software applications used to access and manage a user's email. They can be standalone applications installed on a computer or mobile device, or web-based clients accessed through a browser. Key factors that distinguish email clients include user interface design, integration with other tools and services, security features, and customization options. Market share is typically determined by the number of active users, frequency of use, and regional adoption.

Global Market Share Statistics

The global email client market is dominated by a few major players, each offering unique features and capabilities. According to recent data from Litmus and Statista, the market share statistics for the leading email clients as of 2024 are as follows:

  • Apple Mail: 56%
  • Gmail (Google): 32%
  • Outlook (Microsoft): 4%
  • Yahoo! Mail: 2.5%
  • Other clients: 5.5%

These statistics illustrate the dominance of Apple Mail and Gmail, which collectively account for almost 90% of the global market. The remaining market share is distributed among various other clients, each catering to specific user preferences and needs.

Top Email Clients

Apple Mail

Market Share: 56%

Apple Mail is the leading email client, primarily due to its integration with the Apple ecosystem. Pre-installed on all Apple devices, including iPhones, iPads, and Macs, Apple Mail offers seamless synchronization across devices. Its clean interface, strong security features, and ease of use make it a popular choice among Apple users. Apple Mail supports multiple email accounts, advanced search capabilities, and customizable notifications. The client's recent emphasis on user privacy and security, with features like end-to-end encryption for iCloud emails, further enhances its appeal.

Gmail (Google)

Market Share: 32%

Gmail, a product of Google, is one of the most widely used email clients globally. Available as both a web-based client and a mobile app, Gmail offers a user-friendly interface, powerful spam filtering, and integration with Google's suite of productivity tools, including Drive, Calendar, and Docs. Gmail provides 15 GB of free storage, with additional storage available through Google One plans. Key features include labels and filters for email organization, smart replies, and advanced search functionality. Gmail's robust security measures, including two-factor authentication and machine learning-based spam detection, make it a trusted choice for millions of users.

While Gmail is incredibly poplar as a provider, it is second to Apple Mail in terms of client market share.

Outlook (Microsoft)

Market Share: 4%

Outlook, part of Microsoft's Office 365 suite, is a versatile email client used widely in both personal and business contexts. Known for its clean and professional interface, Outlook integrates seamlessly with other Microsoft products like Word, Excel, and Teams. It offers features such as Focused Inbox, which prioritizes important emails, and powerful calendaring capabilities. Outlook supports multiple email accounts and provides advanced organizational tools, including folders and categories. Its enterprise-level security features, such as encryption and phishing protection, make it a preferred choice for businesses and organizations.

Similar to Gmail, Outlook is more popular as an email provider than it is as an email client.

Yahoo! Mail

Market Share: 2.5%

Yahoo! Mail, one of the earliest web-based email clients, continues to maintain a loyal user base. It offers a staggering 1 TB of free storage, making it an attractive option for users who need ample space for emails and attachments. Yahoo! Mail features a user-friendly interface, customizable themes, and powerful spam protection. Although not as attractive as it once was, its integration with other Yahoo! services, such as Yahoo! News and Yahoo! Finance, provides added value for users within the Yahoo! ecosystem.

Despite facing competition from newer email clients, Yahoo! Mail remains a reliable choice for many due to its long-standing presence and generous storage offerings.

Other Significant Clients

Market Share: 5.5%

The remaining market share is occupied by various email clients, each catering to specific user needs and preferences:

  • Thunderbird (Mozilla): An open-source email client known for its flexibility and customization options. Thunderbird supports multiple email accounts, advanced filtering, and strong security features. It is particularly popular among users who prefer a non-proprietary solution.

  • eM Client: A full-featured email client for Windows and macOS, eM Client offers a modern interface, calendar and contact management, and support for various email services. It is known for its ease of use and robust functionality.

  • Spark: Spark is designed for teams and collaboration, featuring shared inboxes, email delegation, and built-in chat functionality. Its intuitive interface and smart email management features make it popular among professionals and teams.

  • ProtonMail Bridge: ProtonMail is well-known for its focus on security and privacy. The ProtonMail Bridge allows users to integrate ProtonMail with traditional email clients, providing end-to-end encryption for enhanced email security.

Trends and Future Outlook

The email client market is continuously evolving, driven by technological advancements and changing user preferences. Key trends shaping the future include:

  • Enhanced Security and Privacy: With increasing concerns over data breaches and privacy, email clients are investing in advanced security features like end-to-end encryption and AI-driven threat detection.

  • AI Integration: Email clients are now leveraging AI to enhance user experience, offering features such as smart replies, advanced search, and automatic categorization. AI-driven insights and automation are becoming standard to improve productivity.

  • Mobile Optimization: As mobile device usage grows, email clients are optimizing their platforms for better mobile experiences, ensuring functionality and ease of use on smartphones and tablets.

  • Collaborative Features: Email clients are increasingly incorporating collaboration tools, such as shared inboxes, team chat, and email delegation, to support remote work and team collaboration.


Choosing the right email client depends on various factors, including personal or business needs, security preferences, and regional considerations. While Apple Mail, Gmail, and Outlook dominate the global market, other clients like Yahoo! Mail, Thunderbird, and Spark offer valuable alternatives.

Sources: Statistics in this article were sourced from Statista and Block Sender data.

Last Updated: July 9th, 2024
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