Comparison

I2P - The Invisible Internet Project vs Mullvad VPN

I2P - The Invisible Internet Project lands on Depends, and Mullvad VPN lands on Worth it.

I2P - The Invisible Internet Project

Depends

Confidence: Medium

Worth using only if you specifically need anonymous hosting or censorship-resistant P2P and can handle technical setup . it costs nothing.

Worth it

Confidence: High

Buy if personal privacy is your top priority: anonymous signup, no-logs, open-source client, and a cheap flat price.

I2P - The Invisible Internet Project versus Mullvad VPN
Compare	I2P - The Invisible Internet Project	Mullvad VPN
Verdict	Depends	Worth it
Best for	Journalists and activists in censored regions	Privacy-maximalist individuals
Who it's not for	Casual users wanting simple private browsing . use Tor	Anyone expecting a free VPN
Privacy	Encryption by design, but not flawless: one Windows privesc CVE and ongoing de-anonymization research.^⁴	Privacy-first: no-logs, RAM-only, open-source; survived a search warrant without data exposure, but several CVEs have shipped.
Support quality	Guess: volunteer docs only, no vendor support	No support evidence in sources
Public sentiment	Long-time users call it a mature, self-scaling anonymity network but inconvenient and impractical for everyday use.^⁷	Users praise the simple GUI, cheap gimmick-free pricing, and privacy focus, while some criticize removed port forwarding and call it overrated.
Biggest gotcha	Keep the router updated . flaws surface occasionally^¹	Port forwarding is gone; self-hosting or remote-access setups will break after switching