Spark Mail (by Readdle) is a highly popular, cross-platform email client aimed at professionals and teams trying to tame overflowing inboxes. Unlike Mimestream, which is strictly for Gmail, Spark supports almost every major email provider (Gmail, Outlook, iCloud, Exchange, IMAP). Its standout feature is the Smart Inbox, which automatically categorizes incoming mail to reduce noise. With the release of Spark 3, the app leaned heavily into productivity features like a built-in AI assistant, home screen widgets, and a unified desktop experience.

Key Features

Smart Inbox — Automatically sorts incoming emails into Personal, Notifications, and Newsletters, allowing you to batch-delete or focus only on important messages.
Gatekeeper — Acts as a bouncer for your inbox. When new senders email you for the first time, you can accept or block them before they ever reach your inbox.
Spark +AI — Built-in AI tools to help draft emails, summarize long threads, or adjust the tone of your replies quickly.
Cross-Device Sync — Seamlessly syncs your accounts, signatures, and preferences across Mac, iOS, Windows, and Android.
Team Collaboration — Allows teams to share specific emails via secure links, leave internal comments on threads without forwarding, and collaborate on email drafts in real-time.

Why Choose Spark Mail?

Spark is the ultimate choice if you are managing a chaotic mix of work and personal accounts across different providers (Gmail, Outlook, custom IMAP). It is especially powerful for users who jump between a Mac, an iPhone, and a Windows PC, as it offers a unified experience across all of them. The built-in team features also make it uniquely suited for small businesses or founders who need to collaborate on customer support or sales emails directly from their personal inbox.

Communication Mac Apps

Spark Mail

Mimestream

Other Categories