System requirements for Zoom:

An internet connection – broadband wired (5-10mbps in download)  or wireless (3G or 4G/LTE).
You can check your connection speed here
– PC with Windows 7and above, Mac OS X 10.6 and above
– Smartphone with iOS 8 (iPhone 4 and above, iPad Pro, iPad Mini, iPad 2 and above)
– Tablet iPad with OS 13 and above
– Smartphone/Tablet Android 5.0x and above
In the settings of your device you can see the version of the operative system
for more details consult zoom support page