A heart outline expressing approval or affection for an item.
A heart marks approval. It replaced the thumbs-up on several large services because a heart reads as a lighter, less judgemental act — which is a product decision rather than a change in what the shape means.
Registers approval of, or affection for, the item it is attached to, and usually adds it to a list the user can revisit.
Contexts: Software
Adopted in place of a thumbs-up by several services on the reasoning that a heart is a lower-stakes gesture, which changed behaviour without changing the symbol's meaning.
Contexts: Software
Two rounded lobes side by side at the top, their outer edges curving down to meet at a single point at the bottom.
A heart and a star both express approval, and services use them interchangeably.