Boxy Suite
Boxy Suite is a native macOS suite offering standalone apps for Gmail, Google Calendar, Google Keep, and Google Contacts, designed to enhance productivity by eliminating the need for browser tabs. 
Designed with privacy and performance in mind, Boxy Suite connects directly to your Google accounts without intermediaries, ensuring maximum security. Its lightweight architecture minimizes memory usage compared to traditional browser-based access, resulting in a faster, more responsive experience.
Whether you’re a new user or a seasoned professional, Boxy Suite offers a refined and efficient way to manage your Google services on Mac, helping you stay organized and productive without the hassle of constant tab switching.
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TouchMail
TouchMail is an email app that brings all your accounts into one place with a visual, colorful display that saves you time on your email! TouchMail looks and works great with a touchscreen, or keyboard and mouse. Color code messages by sender. Browse messages at a glance. Less clutter in a few taps. Sort and quickly clean up mail from top senders. The top-rated email app for Windows 10, with over 1.5 million downloads, and one of Microsoft's "Essential Windows 10 Apps". Works great with touch, or quickly scroll and browse with your mouse or touchpad. TouchMail is the fastest and easiest way to find what matters most and clean up the rest in Gmail, Outlook.com, Yahoo Mail, iCloud, AOL, Office 365, and most IMAP email accounts. Turn your email into a visual and colorful inbox that you can explore the way you want – using touch, mouse and keyboard, or pen – with rich visualizations, colorful message tiles you can resize, and familiar interactions.
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Vivaldi Mail
A powerful email client built right into your browser. Vivaldi Mail makes it easy to manage emails from multiple accounts, mailing lists and feeds in a unified inbox. A database of all your messages, labels, filters, searches is maintained by Vivaldi and the bedrock of our powerful email client. Mail from all of your accounts is indexed, so it’s searchable offline. Having a mail client built into your browser just makes sense. Compose messages in new tabs, keep multiple messages open and manage them with ease using Vivaldi’s extensive tab features. There are two counters next to folders in Vivaldi Mail. Brand new mails that have never been seen before are called Unseen. Emails that you have seen but not dealt with are Unread. Use customizable Keyboard Shortcuts to work through email faster. Use the Back/Forward buttons to jump in through “history” and views while you work.
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Kiwi for Gmail
Kiwi enhances Gmail and makes Google Apps like Docs, Sheets and Slides work together seamlessly like a full-featured desktop office productivity suite. Use Gmail and Google's office suite outside the browser as a standalone application with powerful enhanced features. Gmail's a powerful application. The browser is a general-purpose tool. If you need to do serious work, here is your edge. Distinct from what Gmail uses in the browser, we designed a powerful engine that allows multiple accounts to be used together with 100% fidelity and no conflicts. It works with Google Drive, Docs, Sheets, and Slides as well. Redefine your inbox on the fly to see what's come in today, or the past 2 days, or past week. Further whittle those down to only emails marked Important with Google AI, Unread, Attachments and Starred. Combine them to keep your inbox limited to a short list of your most relevant emails. Need to see your other emails? All it takes is a click to mix it up or turn it off.
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