FlowCrypt vs RMail

FlowCrypt is an email encryption service that lets users send encrypted messages to OpenPGP users and password-protected messages to other recipients. Recipients can reply securely without installing a plugin. It is offered as a Chrome extension, with other platforms and a mobile application also listed. Gmail and Outlook integration are listed, along with message expiry and password-based recipient verification. The free plan is for fewer than 100 users and lists a 5 MB attachment threshold, while product details say free users can add attachments up to 25 MB. Enterprise supports domains with more than 100 users, and administrators can set domain-wide controls and enforce rules for passphrases, keys, and signing. Enterprise also supports SSO through Google, OIDC providers, and delegated identity providers, and can connect with public key servers, HSMs, and internal systems. Enterprise commercial-use pricing requires contacting FlowCrypt. Its enterprise data processing agreement is described as GDPR-compliant, and enterprise support includes an SLA for availability and response times for fixes and patches.

RMail is a paid email service for protected message and attachment delivery. It supports delivery by attachment, password-based recipient verification, and message expiry. The attachment limit is 10. RMail runs on the web, Windows, and macOS, with Outlook and Gmail integrations and admin access controls. RMail, the maker, was founded in 2000. Four plans are listed, although prices are not provided: RMail Personal includes 25 units per month; Standard includes 200 units per month; and Business includes 500 units per month. Enterprise lists Email Eavesdropping Alerts, Custom Integrations, SSO, and a Cloud Email Security Gateway. The plan structure therefore separates monthly unit allowances from enterprise-oriented controls and integrations. Password verification and expiry address recipient access, while the Outlook and Gmail connections fit users working through those services. The listed pricing model is paid, and no plan price is stated.