A fast email client with AI drafting, summaries, and inbox triage for Gmail and Outlook.
Full evaluationAlternatives guide · Updated Sep 23, 2026
Best Zero
alternatives.
Start with why Zero is not the fit: teams using Microsoft 365 or IMAP providers, or those wanting a conventional closed-source email client with direct telephone support. Then compare the closest options below by score, use case, and purchasing model.
Ranked options
6 products worth comparing
Recommendations prioritize category overlap and organic score. No product can pay for inclusion or position in this list.
An AI-native email client for Gmail with an assistant that searches, summarises, and drafts across your inbox.
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A thoughtful AI collaborator for writing, analysis, coding, and long-form work.
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A broad multimodal assistant for research, creation, analysis, and agentic work.
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AI writing, search, and task assistance inside a connected workspace and knowledge base.
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An answer engine built around current web research and visible citations.
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Switching from Zero
Why look for a Zero alternative?+
Zero is not the fit when you are teams using Microsoft 365 or IMAP providers, or those wanting a conventional closed-source email client with direct telephone support. The options below share at least one of its workflow categories and are ranked by the same organic score.
What is the best Zero alternative?+
Superhuman currently ranks highest among the alternatives (score 78.5). It is best for professionals who process large volumes of email and want speed plus AI drafting in their own voice. Check its dossier for limitations and current pricing.
Is there a free alternative to Zero?+
Yes: Shortwave, Claude, ChatGPT, Perplexity offer a free plan or tier. Free tiers usually cap usage, models, or exports, so test the limit that matters to you.