Spark Mail

Spark Mail is an email client built around filtering and prioritization rather than a plain inbox view, aimed at people and teams dealing with high email volume across multiple accounts. Its Smart Inbox groups messages by sender and importance, a Gatekeeper feature screens unrecognized senders before they reach the main inbox, and features like Snooze, Send Later, and Reminders let users defer or resurface messages on their own schedule. AI-assisted tools handle drafting, summarizing, and translating emails. For teams, Spark adds real-time shared composition, private comments on threads with file attachments, and task delegation, turning individual inboxes into something closer to a shared workspace. The app syncs accounts from Gmail, Outlook, iCloud, Exchange, and Yahoo Mail, and stores data encrypted via Google Cloud, which the company says it does not share with third parties. Spark Mail is made by Spark Mail Limited, whose copyright notice dates to 2007, though it's unclear whether that reflects the founding of the company or of this specific product. The app is available on macOS, iOS, Android, and Windows, has been downloaded more than 19.5 million times, and has received an Apple Editors' Choice designation. It follows a freemium model, free to download with a paid tier for additional features.