Key to Health: Metabolic AI

Name: Key to Health: Metabolic AI
Rating: 4.8 (2255 reviews)
Author: Keyto, Inc.

By: Keyto, Inc. App

Your metabolism, optimized

Overview

Version:

4.0.9

Last updated: 2026-09-22

Ranking

#37,816 ▼ 45

Overall

Features & Capabilities

Key to Health: Metabolic AI helps adults understand how daily choices affect their metabolism through real-time breath acetone tracking and personalized AI coaching. The app pairs with a breath sensor to provide feedback on fat metabolism, progress tracking, science-based goals, and practical guidance for building strength and supporting long-term health.

Meet Key, your 24/7 AI health guide, which adapts recommendations to your habits and goals. The program is designed for real life, with no required keto diet, forbidden foods, or extreme routines. Key to Health reports results from a published clinical trial in which participants lost an average of 10% of total body weight over 48 weeks. Premium access is available through an auto-renewing monthly subscription.

User Growth & Download Statistics

App AI Analytics Education

By:

Keyto, Inc.

Rating:

4.80

(2,255)

Version:

4.0.9 Last updated: 2026-09-22

Version code:

891758431

Creation date:

2019-02-08

Compatible devices:

Size:

49.06MB

URLs:

Website ,Privacy policy

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-09-25

Compare stats and ranking:

Ranking

# 37,816 ▼ 45

Other platforms

Key to Health: Metabolic AI (v4.0.5)

17,291 2.70

(166)

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

Keyto, Inc.

Apple Apps Store

https://apps.apple.com/us/app/key-to-health-metabolic-ai/id1441365703

Website:

https://keytohealth.ai

User Reviews

The app is praised for accurate ketone readings, ease of use, visual tracking, and coaching support, but is hindered by onboarding friction, costly subscriptions, reliability and connectivity problems, limited data/input options, and weak support/warranty.

Pros

Accurate and consistent ketone readings from the breath analyzer.
Easy-to-use hardware and a straightforward app interface with clear readings.
Helpful coaching and actionable insights to stay on keto.
Relatively affordable device with strong performance for its price.
Clear visuals and dashboards that make ketosis tracking simple.

Cons

Onboarding requires answering many questions and creating an account, with no skip option.
Premium subscription is overpriced and often seen as poor value.
Reliability/connectivity issues: device/app often fails to connect, slow warm-up, Wi-Fi issues, and occasional malfunction.
Weak food diary/database: limited entries, no barcode scanning, cumbersome data input.
Poor customer support and short warranty (3 months) leading to frustration.

Recent reviews

I have used this product/app for years and It is always my go to when I need to slim down. Great way to see if you are doing Keyto correctly and how your body responds. Love the new updates app! Hopefully the pens will come back in stock so you can have an extra and share with friends.

by 23*****, 2026-09-04

Really love this device and app. I wish you’d make a change to the age ratings. It’s on 18+ now so I cannot use it on my phone. Don’t see why this needs to be 18+. Even 16+ would be very conservative.