Sondeur

Select a phrase, then ask What or Why.

Sondeur is a learning tool for people who get stuck inside an explanation. Select the exact phrase that stopped you, ask What is it or Why is it, and keep the resulting answers as a tree you can revisit.

How it works

1. 1
   Ask

   Type what you want to understand and the AI generates an explanation.
2. 2
   Select what's unclear

   Drag over any phrase and drill down with What / Why.
3. 3
   Keep the trail

   Your explorations accumulate as trees you can revisit anytime.

Pricing

You can also try it without signing in. Prices are in USD. Applicable taxes and currency fees may apply.