Spark Mail
Smart email app with AI assistant and Smart Inbox prioritization
Founded
2015
Starting Price
$0
Category
Email Clients
Last updated April 26, 2026
About Spark Mail
Spark Mail by Readdle is a cross-platform email client with a Smart Inbox that automatically prioritizes important messages and groups newsletters and notifications. Its AI assistant drafts, rewrites, and summarizes messages, while features like Gatekeeper let you block unknown senders before they reach your inbox.
Pros & Cons
Pros
- Affordable Premium tier ($5/mo) packs serious AI features
- Gatekeeper is a unique anti-spam layer beyond standard filters
- Smart Inbox needs zero configuration to start working
- Excellent native apps across every major platform
Cons
- AI is solid but not as deep as Shortwave or Superhuman
Key Features
Smart Inbox
Automatically prioritizes personal email and groups newsletters and notifications.
AI Assistant
Drafts, replies, summarizes, and rewrites messages in different tones.
Gatekeeper
Blocks unknown senders until you approve them — built-in spam and phishing shield.
Block Sender
One-tap blocking of any sender forever.
Snooze & Send Later
Defer emails and schedule sends to control when messages land.
Cross-Platform
Native apps for iOS, iPadOS, macOS, Android, and Windows.
Email Templates
Create reusable templates for repetitive responses.
Pricing
Free
$0/month
- Smart Inbox
- Basic AI assistant (limited credits)
- Up to 5 email accounts
- 2 Home screen widgets
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