Who texts first?

Discover who starts things, who takes longer to reply, and how you talk. All from your WhatsApp chat.

Analyze my chat

No password · Private · No WhatsApp connection

Your conversation stays yours.

Your chat is analyzed on your device.
No need to sign in to WhatsApp.
We never publish your conversations.

An example with fictional data

Álex and Sam’s chat

12,482messages

Starts more conversations: Álex64%
Typical time between turns: Álex · 4 minSam · 12 min

Observed medians, not read times.

Explore a complete example

Your chat in 3 steps

Export your conversation
In WhatsApp, choose “Export chat” without media.
Add it to ChatFlash
Choose the .txt or .zip. It stays on your device.
Discover your analysis
See your free summary, then decide if you want more.

What does your chat say?

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