Trickle is an application to write down your favorite activity without hesitation, such as jogging, cooking and more. Activities are written down for each group of topics, which is useful when looking back on at a later time.
And if you have others topics of interest, lets subscribe to it. Of course, your topic may also be subscribed to someone. This may have a little positive influence on each other.
By topics, you can write down the activity without hesitation and subscribe only to others activities of interest.