Apple Mail (macOS)★★★★☆No-nonsense but full-featured email application for macOS that works well with multiple IMAP accounts and Gmail.
DreamHost★★★★☆Rock solid web hosting with managed VPS and good support. Hosting this page right now. Cloud computing has been less stable in my experience.
Fossify Contacts★★★★☆Basic, privacy-respecting contacts app for Android that works with all contacts accounts on your phone.
Geary★★★★☆Really lightweight but still modern, so it’s a good choice on lower-end hardware. Basic IMAP features, good for most day-to-day email use. Needs GNOME for setup.
Gmail (Android App)★★★☆☆Works well with multiple accounts and display modes, but tracks you more than it should.
K-9 Email★★★★☆Classic email app for Android: No frills, no ads, no tracking. Supports multiple accounts, phone-to-tablet layouts, and dark mode.
Microsoft Outlook (Android)★★★★☆It works. More stable than the desktop version. Handles mail, calendar and contacts, offers the focused/other inbox view. Tries to keep you in Microsoft’s apps. OK for work, wouldn’t use it for personal mail.
Microsoft Outlook (Desktop)★★★☆☆I won’t say I’ve never liked Outlook, because the macOS version has been pretty decent for a while now (if a bit of a resource hog), but the Windows versions have always been awkward, cluttered, and quirky.
SeaMonkey (Internet Suite)★★★☆☆The old Mozilla Suite lives on! Featuring web, email, news, an HTML editor, IRC client and more. Recent work has mostly been to keep it working and backport security fixes, so web app compatibility lags way behind even the ESR Firefox.
Thunderbird (Email and Calendar)★★★★★Stable, capable desktop email application, works well with multiple accounts including Gmail, Nextcloud, easy to set up and use but with advanced settings when you need them. FLOSS.
Vivaldi (Web Browser)★★★★★Spiritual successor to the original Opera browser, this ultra-customizable web browser can open into a full suite for email, calendar, feeds and more – but only if you want it to.
Windows 10 Mail and Calendar (discontinued)★★★☆☆Not a bad email client. Snappy, works with multiple accounts. Some issues with Nextcloud calendar and contacts. So of course it’s been discontinued in favor of Outlook.