Keyto © 2020. All rights reserved.

Keyto © 2020. All rights reserved.

"It is always in my purse! It helps me as I lost my father, and struggling with stress eating has been an issue. Keyto helps me because I can see when I am back on track and that helps my motivation.

Sarah F.

"It is always in my purse! It helps me as I lost my father, and struggling with stress eating has been an issue. Keyto helps me because I can see when I am back on track and that helps my motivation.

Sarah F.

1015 Fillmore St. PMB 92845 San Francisco, CA 94115

1015 Fillmore St. PMB 92845 San Francisco, CA 94115

Track How Much Fat You're Burning With Just One Breath

Track How Much Fat You're Burning With Just One Breath

Keyto takes the guesswork out of your keto diet by showing your ketosis level instantly on your phone.

Keyto takes the guesswork out of your keto diet by showing your ketosis level instantly on your phone.

AS FEATURED IN

AS FEATURED IN

Frequently Asked Questions

Frequently Asked Questions

Does Keyto Really Work?

Does Keyto Really Work?

Yes. Keyto was developed by Dr. Ethan Weiss and Dr. Ray Wu and is backed by over a decade of research into the effectiveness of the keto diet. Over 10,000 Keyto users have transformed their keto diets and have left thousands of 5 star reviews.

Yes. Keyto was developed by Dr. Ethan Weiss and Dr. Ray Wu and is backed by over a decade of research into the effectiveness of the keto diet. Over 10,000 Keyto users have transformed their keto diets and have left thousands of 5 star reviews.

How Does Keyto Work?

How Does Keyto Work?

The Keyto breath sensor measures acetone levels in your breath and displays it as your level of ketosis to show how much fat you’re burning as a “Keyto Level”.

The Keyto breath sensor measures acetone levels in your breath and displays it as your level of ketosis to show how much fat you’re burning as a “Keyto Level”.

How Is My Keyto Level Calculated?

How Is My Keyto Level Calculated?

Instead of giving raw breath acetone ppm readings, Keyto translates your readings into a Keyto Level. This makes it easier to understand your stage of ketosis and how the foods you eat affect your weight loss journey.

Instead of giving raw breath acetone ppm readings, Keyto translates your readings into a Keyto Level. This makes it easier to understand your stage of ketosis and how the foods you eat affect your weight loss journey.

Keyto is the simplest way to track — and take control — of your keto diet.

There are no strips to pee on. No needles to prick your finger. No calories to track.

Just breathe into the Keyto sensor, then check the Keyto app to see how much fat you’re burning at that moment.

It's the easiest, fastest, most convenient way to know exactly what your ketosis level is. 

Keyto is the simplest way to track — and take control — of your keto diet.

There are no strips to pee on. No needles to prick your finger. No calories to track.

Just breathe into the Keyto sensor, then check the Keyto app to see how much fat you’re burning at that moment.

It's the easiest, fastest, most convenient way to know exactly what your ketosis level is. 

Stop Wondering If You're Actually In Ketosis

Stop Wondering If You're Actually In Ketosis

Over 10,000 Keyto units sold!

Over 10,000 Keyto units sold!

Since Keyto is small — about the size of a marker — you can take it with you everywhere.

Slip it into your coat pocket on your way to a party, bring it to the theater, or keep it in your purse at work.

Test your keto levels as often as you like for a greater chance you have of succeeding at the keto diet.

And unlike gross urine or blood strips, Keyto makes it easy to check your levels no matter where you are.

We think you'll find that your Keyto turns into quite the conversation starter.

Since Keyto is small — about the size of a marker — you can take it with you everywhere.

Slip it into your coat pocket on your way to a party, bring it to the theater, or keep it in your purse at work.

Test your keto levels as often as you like for a greater chance you have of succeeding at the keto diet.

And unlike gross urine or blood strips, Keyto makes it easy to check your levels no matter where you are.

We think you'll find that your Keyto turns into quite the conversation starter.

Get Instant Feedback On the Go

Get Instant Feedback On the Go

Your Keyto breath sensor connects to your phone using Bluetooth.

Once synced to the Keyto app, it'll automatically track your fat burning levels each time you blow in the device.

And if you sign up for a Keyto Premium subscription, you'll get access to extra features like:

Your Keyto breath sensor connects to your phone using Bluetooth.

Once synced to the Keyto app, it'll automatically track your fat burning levels each time you blow in the device.

And if you sign up for a Keyto Premium subscription, you'll get access to extra features like:

The Keyto App Keeps You Accountable

The Keyto App Keeps You Accountable

  • Hundreds of recipes
  • Personalized meal plans
  • Doctor-approved food guides
  • Like-minded communities for added support on your diet
  • Hundreds of recipes
  • Personalized meal plans
  • Doctor-approved food guides
  • Like-minded communities for added support on your diet

All the resources you'll ever need to succeed at keto are right there atyour fingertips.

All the resources you'll ever need to succeed at keto are right there atyour fingertips.

7 AM: "I test myself as soon as I wake up and again after breakfast to help me know how my day will go.

"10 AM: "Someone brought donuts to work but I didn't have any because I didn't want to mess up my Keyto score.

"1 PM: "Took my Keyto to a business lunch & blew a 5. Definitely easier than testing with pee sticks, that's for sure.

"6 PM: "Had some pasta for supper but I'm not worried. I'm at a lower level now but I'll climb back up to high ketosis tomorrow.

"10 PM: "Blew a 6 before bed and planned out my meals for the week using the app!"

7 AM: "I test myself as soon as I wake up and again after breakfast to help me know how my day will go.

"10 AM: "Someone brought donuts to work but I didn't have any because I didn't want to mess up my Keyto score.

"1 PM: "Took my Keyto to a business lunch & blew a 5. Definitely easier than testing with pee sticks, that's for sure.

"6 PM: "Had some pasta for supper but I'm not worried. I'm at a lower level now but I'll climb back up to high ketosis tomorrow.

"10 PM: "Blew a 6 before bed and planned out my meals for the week using the app!"

Struggling With Inconsistent Results On Your Keto Diet? You Need To Try Keyto.

Struggling With Inconsistent Results On Your Keto Diet? You Need To Try Keyto.

Thousands of people have transformed their keto diet from a frustrating, hard to follow meal plan into a clear path to weight loss success.

Here's what a day with Keyto looks like through the eyes of our customers.

Thousands of people have transformed their keto diet from a frustrating, hard to follow meal plan into a clear path to weight loss success.

Here's what a day with Keyto looks like through the eyes of our customers.

"Keyto keeps me from making bad choices whenever I'm craving a snack"

"Keyto keeps me from making bad choices whenever I'm craving a snack"

Keto and low-carb dieters are raving about Keyto

Keto and low-carb dieters are raving about Keyto

"I use this little device a few times per day. It is bizarrely accurate - when I cheat, my levels go down; when I am vigilant, my levels are up. I don't know how I could be Keto without it. Highly recommended."

Ryan M.

"I use this little device a few times per day. It is bizarrely accurate - when I cheat, my levels go down; when I am vigilant, my levels are up. I don't know how I could be Keto without it. Highly recommended."

Ryan M.

Limited Supply: Save $30 On Your Keyto

Limited Supply: Save $30 On Your Keyto

Get easier keto for our lowest price ever.

Get easier keto for our lowest price ever.

Where Do I Get The App?

Where Do I Get The App?

The Keyto app is available at the App Store and Google Play.

The Keyto app is available at the App Store and Google Play.

Why Keyto Premium?

Why Keyto Premium?

While you can check your Keyto level with the Breath Sensor, a Keyto Premium subscription unlocks all the features of the app, including recipes, personalized meal plans, and access to Keyto community groups.

While you can check your Keyto level with the Breath Sensor, a Keyto Premium subscription unlocks all the features of the app, including recipes, personalized meal plans, and access to Keyto community groups.

Is There A Warranty?

Is There A Warranty?

We offer a 1-year hardware warranty on the Keyto breath sensor.

We offer a 1-year hardware warranty on the Keyto breath sensor.

How Does The Device Send Info To The App?

How Does The Device Send Info To The App?

The two components of the Keyto system communicate wirelessly using bluetooth technology. Setup is easy and user-friendly.

The two components of the Keyto system communicate wirelessly using bluetooth technology. Setup is easy and user-friendly.

You'll Love Going Keto Without The Guesswork.

You'll Love Going Keto Without The Guesswork.

BACKED BY A 1 YEAR WARRANTY

BACKED BY A 1 YEAR WARRANTY

Keyto's usually priced at $129.

But for a limited time, we're dropping the price to just $99.

That gets you:

  • The Keyto device
  • Forever access to your Keyto reading and tracking
  • 14 day access of the app's premium features

This discount only applies to current stock (which is extremely limited).

Our last shipment sold out in days so don't miss out on your Keyto at this sale price.

Keyto's usually priced at $129.

But for a limited time, we're dropping the price to just $99.

That gets you:

  • The Keyto device
  • Forever access to your Keyto reading and tracking
  • 14 day access of the app's premium features

This discount only applies to current stock (which is extremely limited).

Our last shipment sold out in days so don't miss out on your Keyto at this sale price.