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Screenshots

  • Keyto - Keto Tracker + Diet screenshot 1
  • Keyto - Keto Tracker + Diet screenshot 2
  • Keyto - Keto Tracker + Diet screenshot 3
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  • Keyto - Keto Tracker + Diet screenshot 8

About Keyto - Keto Tracker + Diet

Keyto is the lifestyle program that will help you lose weight, feel energized, and sleep better. Developed by world renown weight loss and metabolism experts, the program includes a scientifically backed food program along with the Keyto breath sensor.

The Keyto Program:
- Eat satisfying foods until full
- Don't feel restricted
- No calorie counting or food weighing necessary

The Keyto Device:
- Breathe into the device to know exactly how you are doing
- Get instant feedback on how your metabolism is working
- Keep your number up and naturally lose weight

The App:
- Track your scores and weight
- Access all the resources you need to succeed
- Connect with others on the program

By combining the Keyto device with this App, you will be empowered to reach your health goals in the most effortless, enjoyable and natural way possible.

Subscription pricing and terms:

Keyto offers an auto-renewing monthly subscription at $14.99/month and an auto-renewing yearly subscription at $95.99/year to provide you with unlimited access to the Keyto Premium collection while you maintain an active subscription.

Payment will be charged to the credit card connected to your iTunes Account when you confirm the initial subscription purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current subscription period. Your account will be charged for renewal within 24-hours prior to the end of the current period, and the cost of the renewal will be identified. You may manage your subscription and auto-renewal may be turned off by going to your Account Settings after the purchase. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription, where applicable.

Read more about our terms and conditions here:
Terms of service: https://getkeyto.com/terms
Privacy policy: https://getkeyto.com/privacy

What’s new

Version 4.0.6 · Updated September 24, 2026

Bug fixes and stability improvements

User reviews

Tammy McCarthy
Tammy McCarthy
This ketone breath tester, doesn't just tell me if I'm in ketosis, it helps me easily identify when I get kicked out. I have been able to identify calorie/sugar-free sweeteners that kick me out of ketosis as well as other foods. This has been a great help to me. Thank you Keyto!
Penni Leiser
Penni Leiser
Great device essential for weight loss & maintenance
Morgan Blundell
Morgan Blundell
Useful app, even if most of it locked for use by subscribers only. I can't afford to subscribe right now sadly. One suggested improvement: let the app make a sound 10 seconds from blowing. I've missed a couple of blows it's messed with my stats.
Liz Thompson
Liz Thompson
Very useful for tracking ketosis. I compared the breath meter to my blood meter and I was surprised how accurate it actually is. Highly recommend!
Chad Norman
Chad Norman
Great, easy app.
Joseph Sebastian
Joseph Sebastian
Dear Keyto, Thankyou for making the app simple and easy to use. The pairing issue of sorted and it is working perfectly. Thankyou once again in making the app simple to understand with interactive lessons to understand heart healthy ketosis.. Would be thankful if old keto milli molar 0.5 0.9, be bought back in a sim...

Frequently asked questions

What is Keyto?
Keyto is a lifestyle program that helps with weight loss, increased energy, and better sleep.
Who developed the Keyto program?
The Keyto program was developed by world-renowned weight loss and metabolism experts.
What does the Keyto program include?
The Keyto program includes a scientifically backed food program and the Keyto breath sensor.
How does the Keyto program work?
The Keyto program allows you to eat satisfying foods until full without restriction, without the need for calorie counting or food weighing.
What is the Keyto device?
The Keyto device is a breath sensor that provides instant feedback on how your metabolism is working.
How does the Keyto device work?
You simply breathe into the device to know exactly how you are doing with your weight loss goals.
What can the Keyto app do?
The Keyto app allows you to track your scores and weight, access resources for success, and connect with others on the program.
How can the Keyto device and app help me reach my health goals?
By combining the Keyto device with the app, you will be empowered to reach your health goals in the most effortless, enjoyable, and natural way possible.
What are the pricing and terms for Keyto subscription?
Keyto offers an auto-renewing monthly subscription at $14.99/month and an auto-renewing yearly subscription at $95.99/year.
How can I manage my Keyto subscription?
You can manage your Keyto subscription and turn off auto-renewal by going to your Account Settings after purchase.
What happens if I purchase a subscription during a free trial period?
Any unused portion of a free trial period will be forfeited when you purchase a subscription.
Where can I find the terms and conditions for Keyto?
You can read the terms of service and privacy policy for Keyto on their website at the following links:

Alternatives to Keyto - Keto Tracker + Diet

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