This is simplified board — it is obvious that in order to develop website you need to make much more lists and cards. However, this amount of cards and lists is enough to understand Trello' main functions.
Here are the elements of interface we’ve got:
As you can see there are many elements in the card interface. Most of them are intuitive for user. Let’s review most frequently used elements.
This is an app with very rich functionality. Most probably that you will spend some time in order to understand how Jira works, but, it is worth it if there are many complicated tasks in your project, especially if you prefer agile development methodology.
Similar to Trello in Jira there is an option for free usage, however, here you are limited with trial period, not by the functions available. Here you can: