On 21 November 2017, ProtonMail introduced ProtonMail Contacts, a zero-access encryption contacts manager. On 19 January 2017, ProtonMail announced support through Tor, at the hidden service address protonirockerxow.onion.

With a new interface for the web client, version 3.0 also included the public launch of ProtonMail's iOS and Android beta applications. On 17 March 2016, ProtonMail released major version 3.0, which saw the official launch of ProtonMail out of beta. On 14 August 2015, ProtonMail released major version 2.0, which included a rewritten codebase for its web interface. On 18 March 2015, ProtonMail received US$2 million from Charles River Ventures and the Fondation Genevoise pour l'Innovation Technologique (Fongit). The restrictions were lifted the following day. PayPal stated that the account was frozen due to doubts of the legality of encryption, statements that opponents said were unfounded. During the campaign, PayPal froze ProtonMail's PayPal account, thereby preventing the withdrawal of US$251,721 worth of donations. Two months later, ProtonMail received US$550,377 from 10,576 donors through a crowdfunding campaign on Indiegogo, while aiming for US$100,000. It was met with enough response that after three days they needed to temporarily suspend beta signups to expand server capacity.

On, ProtonMail entered into public beta. In 2017, ProtonMail had over 2 million users, and grew to over 5 million by September 2018, 20 million by the end of 2019, and over 50 million in 2020. Initially invitation-only, ProtonMail opened up to the public in March 2016. Although the default account setup is free, the service is sustained by optional paid services. ProtonMail received initial funding through a crowdfunding campaign. The company also operates ProtonVPN, a VPN service. ProtonMail is run by Proton Technologies AG, a company based in the Canton of Geneva. The service can be accessed through a webmail client, the Tor network, or dedicated iOS and Android apps. ProtonMail uses client-side encryption to protect email content and user data before they are sent to ProtonMail servers, unlike other common email providers such as Gmail and. ProtonMail is an end-to-end encrypted email service founded in 2013 in Geneva, Switzerland by scientists who spent time at the CERN research facility.

protonirockerxow.onion (Accessing link help).

Protonmail android app