Zapya by DewMobile is a file sharing tool that uses local Wi-Fi networks to transfer files. Unfortunately, Zapya for Mac is not yet available, but if you want to try apps that allow file sharing via wireless networks, then you may check this list. This list contains handy alternatives to Zapya for Mac. The software on the list will facilitate file transfers through Wi-Fi networks providing you with a nice substitute for Zapya.
Feel free to add any alternative to Zapya for Mac that you know of.
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BTW, just found out that you can share the files on Mac without additional apps https://support.apple.com/en-us/HT204445 Just thought...