ActiveCampaign is a marketing platform that helps you send campaigns, design newsletters, automate channels, and close deals faster. You can segment emails, add dynamic data, perform split testing, and manage your text-messaging marketing. Category : Sales Automation, Popular, Email Marketing, Marketing Automation, Drip Emails

Constant Contact is an email marketing software that lets you manage events, create surveys, and even add mobile-responsive coupons. You can track every click, activate autoresponders, manage contacts, and make use of the professional email templates or create your own. Category : E Commerce

Harvest is an online time tracking application that lets you track expenses, manage projects, and automatically create invoices from expenses and billable time. Category : Time Tracking, Popular

Slack is a messaging app for teams. You can create channels to organize conversations, search message history, and add notes and reminders. Category : Popular, Team Collaboration

Trello is a team collaboration platform that lets you manage all your projects. You can list your tasks on cards, organize cards into lists, organize cards using color coded labels, and subscribe to boards that you want to stay updated on. Category : Popular

Twilio is a platform that lets developers receive and send SMS and voice calls. With message queueing, global numbers, and smart encoding, you can easily set up your communication system. Category : Popular

Zendesk is a cloud-based help-desk solution that helps you track, prioritize, and solve customer interactions. You can add dynamic content, use or define macros to respond quickly, and obtain detailed insights on all your customers. Category : Popular, Customer Support