Aster Mail vs NevTan Mail

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.

NevTan Mail brings custom-domain business email together with calendar, meetings, team administration, tasks, and notes. Its mailbox supports search, scheduled send, snoozing, signatures, filters, and inbox organization. Guided domain setup checks SPF, DKIM, and DMARC records; the calendar syncs with Google Calendar, and meetings can include Google Meet, Zoom, Teams, or other video links. Outlook, Thunderbird, Apple Mail, and other IMAP/SMTP clients can connect. Imports support Google, Yahoo, and Zoho over IMAP with an app password, but not Microsoft accounts; each import is limited to 500 MB, with only one running at a time. NevTan describes transport and account protections, and its features page claims end-to-end and zero-access encryption for mailbox contents. Plans include a free option with 5 GB per mailbox and up to 10 mailboxes. Annual paid plans are $2 a year for 35 GB, $5 a year for 100 GB, or $12 a year for 250 GB per mailbox; monthly Starter is $1 a month per mailbox with 30 GB. It runs on Android, iOS, macOS, web, and Windows.