IPVanish vs Mullvad

IPVanish is the less fussy choice for a pile of devices. Mullvad is the more transparent one if open client code and less conventional payment options are part of the reason you are comparing VPNs at all.

Paid plans do not make you count devices

IPVanish's paid plans do not make you count simultaneous devices. Mullvad uses a connection cap rather than an unlimited-device model. If the VPN will live on phones, laptops, tablets, and spare devices, that removes a small annoyance that otherwise keeps coming back.

Mainstream streaming access is also confirmed

IPVanish currently supports access to major streaming platforms. Reliable major-platform streaming is not confirmed for Mullvad. If streaming is part of the normal routine, this is the stronger practical argument on the IPVanish side.

The apps are open source across the supported set

Mullvad's client apps are open source across the supported platform set. Not all of IPVanish's client apps are open source. That is useful if client transparency is part of your minimum trust bar rather than just a nice extra.

Cash and cryptocurrency are both supported

Mullvad supports cash payment. IPVanish does not currently support cash payment. Mullvad supports cryptocurrency payment. IPVanish does not currently support cryptocurrency payment. Those options are niche, but they are real differences for someone deliberately trying to keep payment details separate from the VPN account.