Spike

Spike is an email client that shows messages as chat-style conversations, while people outside it still receive a normal email. Listed in Israel, it bundles several accounts, team chat, documents, tasks and calls into a single inbox.

What Spike offers

• Conversational email — threads grouped by the people involved instead of subject lines.
• Unified inbox — connects Gmail, Microsoft and other accounts, with search across messages and files.
• AI assistance — priority sorting, summaries of unread threads, message drafting and translation.
• Team collaboration — group spaces for projects or clients, shared notes and tasks, and a shared team inbox for assigning conversations.
• Calls and files — audio and video calls without scheduling links, plus a view of all attachments.
• Business email — a new address on a connected or supplied domain.

Who it works with

Spike suits teams and professionals working with colleagues and clients, including people who do not use the app.

Key facts

• Based in: Israel
• Users: over 3 million teams and professionals
• Developer offer: iGPT, an email intelligence API for AI agents and automations