Every finding, and how it’s counted.

The numbers come from your messages, on your phone. Here is how each one is worked out, and what it can and can’t tell you.

• Who texts first, counted one conversation at a time

  Who texts first in your WhatsApp chat? How WholeThing counts conversation starts after six hours of quiet, and what the split can and can’t tell you.

• Average reply time, and why WholeThing uses the median

  What’s a normal average reply time in a chat? How WholeThing measures each person’s typical reply in a WhatsApp chat, and how it spots when that changed.

• When did things change? Finding the week, not guessing it

  When did things change? WholeThing finds the one week your WhatsApp chat shifted most, with messages per week before and after, and only if the change is real.

• The longest time you went without texting, and who broke it

  How long is too long without texting? WholeThing finds the longest gap in your WhatsApp chat, checks it against your own rhythm, and shows who broke it.

• What time do you text most? Every message, hour by hour

  What time do you two text most? WholeThing sorts every WhatsApp message by hour and day, and says if you’re night owls, morning people or weekend talkers.

• The most used words in your chat, and the one you share

  The most used words in a WhatsApp chat are mostly “the” and “okay”. WholeThing finds the word you both keep saying instead, plus your top three emojis.