Psiphon is primarily focused on bypassing censorship and provides a straightforward user experience with a free option. ZenVPN, on the other hand, emphasizes speed and security with stronger encryption and additional features like a kill switch.
Psiphon
Pros:
Easy to use with a simple interface
Supports multiple platforms including Windows, Android, and iOS
Allows bypassing internet censorship
Provides unlimited bandwidth
Offers a free version with no registration required
Cons:
Limited server locations compared to some competitors
Free version may have slower speeds during peak times