Disable network access for specific program on specific network

I use my phone as a WiFi hotspot with my Windows laptop. On this laptop I use the Dropbox application to sync it automatically, but the syncing can use a lot of data and my data plan only gives me 3 GB.

I have searched for a program that can disable network access for specific applications, like Windows Firewall, but with the added functionality of specifying settings for different networks. Unfortunately I haven't been able to find anything like it, does anyone here know about a program that could help me?