Spark

Email that works for you

Freemium

About Spark

Spark by Readdle is the email client that bridges personal productivity and team collaboration. The Smart Inbox automatically categorizes emails (Personal, Notifications, Newsletters) so important messages surface first. Unique team features let you discuss emails privately via comments, share drafts for review, and assign emails as tasks—without CC chaos. Available on Mac, iOS, Android, and Windows with seamless sync. The 2023 Spark 3 redesign added AI writing assistance (Spark +AI) for composing, summarizing, and replying to emails. Free tier covers personal use; Premium ($4.99/month) adds AI features and advanced customization; Teams ($6.99/user) enables collaboration features. Less keyboard-centric than Superhuman but more affordable with genuine team capabilities.

Key Features

Smart Inbox auto-categorization (Personal, Notifications, Newsletters)

Team email collaboration with private comments

Shared drafts for review before sending

Spark +AI for writing, summarizing, and replying

Email scheduling and snooze

Cross-platform sync (Mac, iOS, Android, Windows)

Pros & Cons

Pros

• Genuine team collaboration features (comments, shared drafts)
• Smart Inbox effectively surfaces important emails
• AI features at fraction of Superhuman's price
• Cross-platform with consistent experience
• Free tier is genuinely useful

Cons

• Less keyboard-centric than Superhuman
• AI features require Premium subscription
• Initial sync can be slow with large mailboxes
• Some privacy concerns about email processing

Best For

Small teams needing email collaboration Users wanting Smart Inbox organization Cross-platform users (Mac + iOS + Windows) Those wanting AI email features at lower cost