Yes! You can customize your Mapiful with a variety of symbols. If your Mapiful is meant to be for that someone special, a heart symbol can add that extra touch. However, just as is the case for every phone and computer, the conversion can differ from your platform to ours.
To be on the safe side, always use any of the following symbols:
Unicode heart symbols
For further questions, feel free to contact us at firstname.lastname@example.org