At one point the Verizon Message+ app was able to receive and send text messages over Wi-Fi. This capability is purposely disables when used on smartphones that you have a paid cellular service on Verizon with. All other devices have it enabled unless you have the Advanced Calling Service with a smartwatch service.
From the official app description:
Calling: Advanced Calling customers (eligibility rules apply) can link their phone number to the Verizon Messages app on their tablet or compatible smart watch and make and receive calls wherever they want on any network (cellular or Wi-Fi).
I work in a building where no Verizon services exists, but I still need to receive and send texts. Does anyone have a recommended app for texting over Wi-Fi that I can switch to?