A calorie tracker that lives in WhatsApp

Why WhatsApp

The hard part of tracking has never been the maths. It's that logging happens at exactly the moment you least want extra friction — mid-meal, post-workout, half-asleep. Any step that requires opening a separate app and navigating a form is a step people eventually stop taking.

WhatsApp is already open. That's the entire argument.

What you can send

• A photo of your plate — broken down item by item, with calories and macros.
• A voice note — describe a workout on the walk home and it's logged.
• Plain text — "3 sets of 12 at 60kg" or "weighed in at 84.2 this morning".
• A question — "can I have the risotto?" and get an answer that accounts for your day.

What makes it more than a logger

Meals, workouts and body metrics land in one place, so they can be reasoned about together. A standalone food app doesn't know you trained this morning. A workout app doesn't know you're 40 g short on protein. A scale app knows neither.

Chiron holds all three, which is what lets it give an answer rather than a number.

Your data

Everything you send is stored securely, never used to train AI models, and viewable or permanently deletable at any time from your dashboard. Chiron never asks for card details over WhatsApp — payment happens only on a secure checkout page.

What it costs

A 7-day free trial, no credit card required. After that $15/month, or $144/year. You can cancel by texting "cancel". Refer friends and each active referral takes $1/month off, so with enough of them it costs $1/month.