It's actually the infinity symbol ♾️ It means you've received unlimited lives for a certain period of time. Once you activate it, there should be a little countdown clock accompanying the heart where it tells you how much longer you'll have unlimited lives for.
*May be worth noting: unlike some other games I've played before, the unlimited lives session does not reset your actual lives back to five when the unlimited period ends... so you come back to however many lives you had before activating.
Comment found on Zen Match - Relaxing Puzzle: What does the red heart...
It’s so you have a sense of winning before you’re challenged with the more difficult one that follows. Winning puzzles release dopamine in the brain that makes you feel good. The precursor of dopamine makes it easier to handle the harder game that may cause a loss. Without people would tend to just stop playing altogether.
Comment found on Zen Match - Relaxing Puzzle: Can someone tell me what...
I'm stuck on level 904 and cannot get past it. wtf.
Comment found on Zen Match - Relaxing Puzzle: This is supposed to be...
Agreed. I'm about ready to uninstall this game app.
Comment found on Zen Match - Relaxing Puzzle: This is supposed to be...
I'm on 253. Small board
Comment found on Zen Match - Relaxing Puzzle: How do you play the...
Completely agree with you.
Comment found on Zen Match - Relaxing Puzzle: This is supposed to be...
I’m on level 375 small board
Comment found on Zen Match - Relaxing Puzzle: How do you play the...
That's the only one I can't finish either. Not enough time to do it!
Comment found on Zen Match - Relaxing Puzzle: I can ’ t not...
Cómo pasa el nivel 79 zen match
Comment found on Zen Match - Relaxing Puzzle: Level 79