1) Does it automatically set your time zone to your VPN’s location or do you have to manually do it yourself by checking your chosen location’s time zone?
Yes there is a convenience toggle to sync with VPN:
However, I wonder if that is because it never sets it off too far away from my actual time zone. I say this because I strongly suspect that if you live in Australia, and set your time zone to the UK, which can be 10 to 11 hours, it will almost certainly ring alarm bells with websites.
It depends on the service. Yes if you access a site under one timezone then re-access it with spoofing faster than one could physically travel to that country, then you could be detected. This is a classic speed-of-light problem. It is up to the user to consistently apply spoofing for the website of choice. I am planning an allow-list feature to help users always present a geolocation per site.
2) Do you plan to develop an Android app?
Not on my roadmap but that is an interesting idea. Right now I have only been targetting the browser. But I could do some exploratory research to see what is possible on the device level.