Launching soon on

WHISTLE®

smart metabolism tracker

W

You’re in fat-burn mode 🔥

We suggest a salad.

WHISTLE®

smart metabolism tracker

W

You’re in fat-burn mode 🔥

We suggest a salad.

Notify me at launch

Right Food.
At the Right Time.

with WHISTLE®

1. Breathe in
2. Identify your body’s fuel source

W

You’re in fat-burn mode.

Keep it up!

3. Eat right food at the right time

Time your meals to match your metabolic state. Eat carbs when you can burn them efficiently.

Lose weight without giving up your favorite meals

Whistle AI recommendation engine

Stay motivated
together

Up to 5 invitations

for a shared Challenge Experience

Get notified when we go

live on Kickstarter

WHISTLE®comes in 5 different colors

Get a $110 discount

and be notified at launch

The Whistle

$359

$249

  • Smart Metabolism Tracker
  • Wireless Charging Case
  • Detachable Neck Strap
  • Free App & Meal Recommendation Access

60 Day Battery life with one charge.

Leave us an email and get the best price.

WHISTLE®

Whistleâ„¢ are trademarks of Millennial Inc.
Patents pending for Whistle and Whistle AI.