Video: Things vs Trello

Things is a delightful and easy to use task manager. You'll get started in no time, entering and organizing your to-dos. You'll discover how Things truly makes you more productive. And soon you'll realize that achieving your goals comes more naturally – one to-do at a time.
Get organized as fast as you can think. The easy-to-use interface takes no time to learn, and every action is instantaneous, so there’s nothing standing between you and your sweet productive flow. Trello is great alone, but even better with others. Get the whole group onboard in seconds. See their updates in real time. Free Trello alternatives are Bitrix24, Producteev, Remember the Milk. If you are looking for self-hosted open-source Trello alternative, pay attention to Taiga and Wekan.
Face to face in the news:

2016 - Trello makes its Power-Ups available to free users. Things keeps calm

Project management service Trello made its Power-Ups (third-party integrations) available to all of its users, including those who are on the service’s free tier. Until now, only paying users were able to use this feature, which includes integrations with products like SurveyMonkey,, Github and Slack, among many others. Free users were restricted to using three very basic Power-Ups: Calendar for seeing Trello’s calendar view, Card Aging for slowly fading out cards as they age, and Voting for (you guessed it) adding a voting option to cards. Besides, Trello is launching integrations with Intercom, Github Enterprise and Screenful. Trello itself is also launching two new Power-Ups itself: custom fields for users who want to be able to create new data fields and visual cues for their cards, as well as a Card Repeater that allows you to set intervals for repeating tasks. With Card Repeater, you can set up Trello to automatically create copies of certain cards for recurring tasks like expense report due dates. This feature is currently only available as a public beta, though, and admins will have to request access to it.