Wunderlist is a simple app to monitor and organize to-do lists. Accomplish mixes a to-do list and a calendar in one app. Boomerang for Gmail lets you schedule when to send an email. Buffer eases on managing social media profiles. Gmass lets you post in a wider reach and personalize your greetings. Pocket saves information in your queue. ClearFocus give you structure to accomplish more tasks with small breaks along the way, per Entrepreneur.