MailPop for Gmail is described as 'We love Gmail as much as you do. That's why we created MailPop for Gmail. It's the simplest, most fluid way to access your Gmail account'. There are more than 25 alternatives to MailPop for Gmail for a variety of platforms, including Windows, Mac, Linux, Firefox and Opera. The best alternative is Shift, which is free. Other great apps like MailPop for Gmail are Wavebox (Freemium), POP Peeper (Freemium), Kiwi for Gmail (Freemium) and Unibox (Paid).
Work quickly & seamlessly on the web. WB brings your favorite webmail, websites & web apps together in one organized place. Log in to multiple accounts using cookie profiles. Built on Chromium, fast & secure.
POP Peeper is an email notifier that runs in your Windows task bar and alerts you when you have new email on your POP3, IMAP (with IDLE support), Hotmail\MSN\LiveMail, Yahoo, GMail, Mail.com, MyWay, Excite, iWon, Lycos.com, RediffMail, Juno and NetZero accounts.
Kiwi for Gmail (formerly Gmail for Mac) turns Gmail into a full-powered desktop email client. No one wants to use Gmail in the browser on their phone, and we felt they shouldn't have to on Mac or Windows either.
Displays new emails, sender's contact photo, and notifications, and allows the user to listen, read or delete emails without opening Gmail! Supports multiple accounts plus and provides many other tools.
Mia is a native Gmail application on your Mac's menu bar! Read and compose your emails without a browser (attachment files supported). Quick email overview (pass your mouse over an email). Desktop notifications for incoming emails (10.8+).
Gmail Notifier Pro is a Windows application capable of checking multiple Gmail accounts for new mail and display notifications. Feature highlights - Check multiple Gmail accounts, including Google Apps, for new mail. - Supports both Atom and IMAP protocols for mail.