VPN is needed in cases where access to a particular resource on the Internet has been restricted by your state, or the service itself
In almost all countries of the world, it is perfectly legal to use VPN services. The use of VPNs is punishable by law in Iraq, North Korea, Oman and Turkmenistan.
InstaVPN does not have any special device requirements. It is guaranteed to work on those Android and iOS devices where it is available in the app store. If you are able to install it, then it will work.
Instagram, LinkedIn, Netflix, and many others
For example, WhatsApp calls might be blocked in your country. Or maybe you do not have access to ChatGPT. All this is solvable with InstaVPN