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Spark offers a smart inbox experience enhanced by AI to help you draft, summarize, and reply to emails effortlessly. It categorizes emails automatically to minimize distractions and prioritize real people.
Other tools in the Email Assistants category
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How tools are selected
Every tool on aistacks is manually reviewed before being added. We look at real-world usage, workflow fit, and whether it genuinely saves time — not just popularity.
What belongs in a good stack
Tools are grouped by workflow role — not thrown together. Each stack is built around a specific persona and task, so every tool has a clear reason for being there.
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Free basic version, Premium starts at $4.99/mo
Free plan available; Premium starts at $4.99/mo
Chrome extension that uses AI to automate your typing, generate emails, and draft replies instantly.
Free basic features • Pro from $9.99/mo
Email extension with an AI assistant for Apple Mail, Outlook, and Gmail.
Free plan available; Smart plans start at $4.95/mo