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Quick answer

What is Spike?

Spike

Answer

About Spike

Spike is the chat-style email app.

The chat-style email app. Spike transforms email threads into chat-like conversations โ€” a tiny Tel Aviv team built it as a calmer Slack-meets-email.

Source

This answer is drawn from the Spike listing on Startup Spotlight, last updated May 20, 2026. For the full profile, see the Spike listing.

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