Aster Mail vs PrivMail

Aster Mail is an open-source email service with a free plan and paid tiers. It supports web, desktop, and Android, with an iOS beta on TestFlight; native desktop apps are available for Windows, Mac, and Linux. Aster Bridge lets desktop mail apps connect over IMAP and SMTP. Mail between Aster accounts is automatically end-to-end encrypted and uses hybrid post-quantum encryption. The free plan costs nothing and includes 10 GB of encrypted storage, five aliases, one custom domain, two mail rules, attachments up to 25 MB per message, and Bridge access; no trial or credit card is required. Aster says its email is hosted in Germany under EU privacy law and that it does not use ads, inbox scanning, or AI on the inbox. QuickSwitch imports mail from Gmail, Outlook, Yahoo, Proton, and other IMAP providers. MBOX mailbox export is free on every plan. Paid plans start at $2.42 a month, billed annually, with the final amount determined at checkout. Aster Mail was founded in 2026 and is headquartered in Orlando, Florida, United States.

PrivMail, also called PrivateMail, provides encrypted email and file storage, along with tools including a calendar, tasks, notes and email aliases. Email supports end-to-end OpenPGP encryption. Users can generate or import OpenPGP keys, which the service says remain on their devices rather than its servers. SecureShare encrypts files locally before upload, for recipients to download and decrypt locally. PrivateMail Files encrypts synced-folder contents with AES 256 encryption and supports desktop folder sync. Users can add external services such as Gmail, Outlook or Mail.com and manage OpenPGP security through PrivateMail. Optional mobile sync covers native Android and iOS contacts and calendars. PrivateMail says it does not log inbox logins or IP addresses when users access its mail services. It is listed for Android, iOS, Linux, macOS, web and Windows. A free plan is available with a TorGuard subscription; it is webmail-only and includes 100mb email storage and 100mb file storage per month. Paid plan prices listed include $8.95 per month for Standard and $15.95 per month for PrivateMail Pro.