the full report
one screenshot shows a moment. your whole chat shows the pattern: who texts first, who waits longer, and the month it changed.
first, export the chat. it takes about a minute.
open the chat → tap the name at the top → export chat → without media → save to files
open the chat → tap ⋮ top right → more → export chat → without media → save it to files or drive
on a computer: open the chat → menu → export chat history → format json
imessage, instagram and snapchat have no chat export, but you can record your screen while you scroll the chat, and the reader goes through it: read a screen recording.
the numbers are counted here, on your phone; only the counts are sent, to write the verdict. the deep read is separate and asks first, your chat is sent only if you tick the box.