Aimtell - Web push notifications for mobile & desktop
Hiver - Manage Customer Support, Sales and Projects right from your Gmail inbox. Collaborate with Shared Labels, Shared Contacts, email notes, email reminders and email templates
Truepush - Unleash limitless possibilities with Truepush and save up to $600 monthly. Free up to 10K Subscribers on all features.
MailClark - The Slack bot for external communications
Secure Suite - Cloud Email service
Clean Email - Clean Email is an online service that empowers you to take control of your mailbox.