Mozilla Thunderbird vs Newton Mail

Mozilla Thunderbird is a free, open-source email application for Windows, Linux, macOS, and Android. Users can manage multiple accounts separately or combine them in a unified inbox. The app includes calendar, contacts, and task tools; desktop users can also work offline and schedule messages. Its interface is customizable, and it supports third-party add-ons. Thunderbird says it does not put ads in the inbox or sell inbox advertising, and that user donations fund the project. It describes privacy and security as priorities and says its open-source code has been reviewed and improved over 20 years. The application is part of MZLA Technologies Corporation, owned by Mozilla.org. Help and getting-started resources are available for desktop and mobile users, with contributors around the world supporting the project. Thunderbird is available free forever, with donations optional; its listed mobile platform is Android.

Newton Mail is an email app for Mac, Windows, iPhone, and Android, with a unified inbox, offline access, scheduled sending, and calendar tools. It supports Gmail, Google Workspace, Outlook, Microsoft 365, and IMAP providers, and connects with apps including Todoist, Evernote, OneNote, Trello, Asana, Claude, and other AI apps. The free plan has no time limit and supports up to two Gmail, Outlook, or IMAP accounts, 15 read receipts per month, and 20 AI actions per day. Pro costs $5 a month with annual billing and includes unlimited email accounts, read receipts, and templates, plus 200 AI actions daily. Team costs $12 a month with annual billing and a two-seat minimum; workspaces include three shared inboxes. Teams can share threads, comment, reply on behalf of others, and view activity. Newton says credentials are encrypted with AES-256-GCM and that it does not see email passwords through OAuth sign-in. Attachments are limited to 25 MB. A 14-day free trial is available.