Train.Red APP
Muscle Tracking & Training
About
This app monitors muscle oxygen saturation to provide real-time physiological insights for athletes and coaches. It helps optimize performance, track recovery, and analyze training data with actionable metrics.
What's New in Train.Red APP
2.3.1
June 28, 2026
App Updates Italian and Japanese Translations New firmware Enabling larger and better performing sessions through better memory management Female muscle selection
MoreFAQ
What does Train.Red do?
Train.Red monitors muscle oxygen saturation (SmO2) and other hemoglobin metrics to provide real-time physiological insights. This helps users understand muscle performance, recovery, and optimize their training.
Does Train.Red require a sensor?
Yes, the Train.Red app requires the official Train.Red sensors for full functionality. These sensors are light-based wearables that attach directly to the skin.
What kind of data does Train.Red measure?
Train.Red measures SmO2 (Muscle Oxygen Saturation), O2Hb (Oxyhemoglobin), Hhb (Deoxyhemoglobin), Thb (Total hemoglobin), and HbDiff (Hemoglobin Difference).
Can I export my data from Train.Red?
Yes, you can export your training data to .csv or .fit files for in-depth analysis. Every training session is stored in the cloud and can be analyzed or exported afterward.
Where should I place the Train.Red sensor?
The sensor can be placed anywhere on the body, but it's recommended to wear it on a primary involved locomotor muscle relevant to your activity, such as the thigh during cycling or the upper leg during running.
What devices is Train.Red compatible with?
Train.Red is available for iPhone, iPad, and iPod. It is designed to work with the Train.Red muscle oxygen sensors.
How often is Train.Red updated?
The latest version of Train.Red is 2.3.0, which was last updated on May 20, 2026. Updates typically occur to improve functionality and add new features.
What is the user sentiment for Train.Red?
Train.Red has a perfect rating of 5.0 stars from 1 rating, indicating very positive initial user sentiment. Users appreciate its advanced physiological tracking capabilities.
