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Proton VPN vs iTop VPN: catalog facts
Proton VPN	iTop VPN
Freemium The free tier has no data cap but limited countries and speeds. Paid plans add more…	Freemium Free VPN tier available, with discounted paid plans.
Windows, macOS, Linux, Android, iOS, Browser extension	Windows, macOS, Android, iOS
A free tier with no data cap and no advertising Clients are open source on every platform and independently audited	Free tier with no stated data cap More than 3,200 servers in over 100 countries and regions
An account is required, even for the free tier Free tier covers few countries and slows down at peak times	Proprietary service with no published source Homepage promotes several unrelated utilities alongside the VPN
Downloadable app, Browser extension	Downloadable app, Hosted service
Open source	Closed source
License: GPL-3.0	License not stated
Account needed	Not stated if an account is needed
Works offline	Needs internet
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.