Spark has long been one of the best and most popular third-party email apps. Its developer, Readdle, managed to build a tool that is clean, fast, and simple in a market where very few apps check all three of those boxes. It works across multiple platforms, handles multiple accounts with ease, and is free for practically everyone.
But Spark’s new app, which is available now for Mac (though the App Store version is still behind), Windows (for the first time), iOS, and Android, takes a completely different approach. It asks — and sometimes forces — you to be more thoughtful about how often you look at your inbox. The new desktop app no longer also includes a calendar view and focuses entirely on email. It has very specific ideas about where...
