Comparison

Training Today vs Train.Red APP

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Training Today

This app analyzes your Apple Watch health data to provide a daily readiness to train score. It helps prevent overtraining injuries and guides your training intensity, offering insights into your body's recovery and performance potential.

Highlights
  • Calculates daily readiness to train (RTT) score
  • Multi-day RTT score chart
  • Independent Apple Watch app
  • Uses HRV, workout detection, and custom algorithm
  • Automatic data outlier filtering
  • iPhone companion app with tutorial
  • Complication support for quick RTT glance
Features
Read full description

Training Today constantly monitors your Health Data from Apple Watch to determine your readiness to train (RTT) each day and throughout the day. Training Today can help you stay safe from overtraining injury or let you know if it’s the best time to work hard, take it easy, or have a rest day. Developed with British Triathlon Coaches and tested on athletes of varying ability, we have taken a holistic view of your life by using the advanced capabilities of Apple Watch to monitor your health 24hrs a day and process that data to create a simple, accurate readiness to train (RTT) score to help you reach your training goal. Key Features =============== * Calculates your readiness to train (RTT) score automatically throughout the day. * Presents a multi-day chart showing how your score is changing. * Using the Digital Crown, you can scroll through previous RTT scores on the chart. * Runs independently on Apple Watch; no need for iPhone to be present. * iPhone companion app also shows your current RTT score and tutorial. * Full support for all complications means you can quickly glance at your watch and see your current RTT score at any time. * We use Heart Rate Variability (HRV), Workout detection and our own algorithm to determine your RTT score. * Automatic filtering of outlier data (e.g. very larger variances in data) * Workout detection - we detect when you have completed a workout logged to Apple Health and show it on the chart. Tap the screen when you see one to get details of the workout and better understand the impact on your RTT score. The following are available in the subscription version: * Siri support - ask, "Hey Siri, what's my Training Today score?" or "Hey Siri, what's my Training Today RTT?" to see your score and current weekly chart * Siri shortcuts - get your current Training Today score as input for automation you can create in Apple Shortcuts. * Apple Watch notifications when your RTT drops by a configured amount compared to your 4-day average. * View your RTT chart on your iPhone as well as your Apple Watch * View your complete baseline HRV and RHR (Resting Heart Rate) data in the iPhone app and scroll through Years, Months and the related weekly RTT charts. * Fine-tune your RTT score using Smoothing and Intensity Settings on your iPhone * Add widgets to your iPhone home screens and lock screens showing your current RTT score and chart. * Apple Watch Smart Stack Widget * Compare your Resting Heart Rate data with your RTT and HRV scores. * Notifications on Apple Watch when your RTT changes over a configured value compared to your 4-day average. * More features with each release More info at https://TrainingTodayApp.com For best performance, wear your Apple Watch as much as possible and overnight if you can. The Training Today iPhone and Apple Watch app (“App)” provides only information, is not medical or treatment advice, and may not be treated as such by the user. As such, this App may not be relied upon for the purposes of medical diagnosis or as a recommendation for medical care or treatment. The information on this App is not a substitute for professional medical advice, diagnosis, or treatment. All content, including text, graphics, images, and information, contained on or available through this App is for general information purposes only. Note: Original Apple Watches (Series 0) are not supported because they do not support HRV or watchOS 6 or later, and users under 16 are not supported because HRV data is unavailable. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula

About

Train.Red APP

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.

Highlights
  • Muscle oxygen saturation monitoring
  • Real-time physiological insights
  • Performance and recovery tracking
  • Workout analysis and data export
  • Team/organization structure
  • Live data overlay
Read full description

About this app The official app for the Train.Red muscle oxygen sensors, the new metric for performance. To move, your muscles need energy. The most efficient way to get this energy requires oxygen. We measure the oxygen saturation in your muscles to help you improve. Not every athlete has a team of scientists helping them with their physiological data, we measure data from your muscle and translate this into useable insights, in real-time. - Monitor your physiological power and perform easy exercise tests as an endurance athlete. - Know when your muscle is fully recovered and ready for the next set when doing strength. What’s more? - Cloud functionality to allow workout analysis at home, even when you perform in the gym. - A Team/organisation structure that allows multiple athletes to use the sensors. - Actionable insights after your training or scientific analysis with access to raw data. - Live view with data overlay to match measured fatigue with movement patterns. - Muscle States, Protocols, Dashboard, Training Menu, Muscle Stress Score, and much more. How to start with Train.Red: Create a user profile and connect your sensor. No sensors yet? The Train.Red app requires the Train.Red sensors for full functionality (https://train.red/). Connected your FYER or PLUS? Nice, you are ready to BE AHEAD. What does Train.Red do for me: Whether you’re an athlete, coach, scientist, physio, or anyone involved in sport, Train.Red has something to offer you. Simply because your muscles play a key role in human movement. We track your muscle oxygenation, more specifically, the hemoglobin concentration changes. The Train.Red sensors measure: - SmO2, Muscle Oxygen Saturation (%) - O2Hb, Oxyhemoglobin (mM) - Hhb, Deoxyhemoglobin (mM) - Thb, Total hemoglobin (mM) - HbDiff, the Hemoglobin Difference (mM) If this sounds like Abracadabra, no worries. We display the oxygen saturation in your muscle live and use the other metrics to provide you with actionable insights in real-time. Our AI and advanced analysis options translate this data into 5 different muscle states showing you if your muscle is recovering, or approaching its limits. If this physiological data sounds familiar, perfect. We allow exporting your data to .csv or .fit files for an in-depth analysis of all your data. Every single training session is stored in our cloud and can be analyzed or exported afterward. How do I use Train.Red? The Train.Red sensor is a light-based wearable that you wear directly on your skin. You’re free to place the sensor anywhere on your body but know that this is a hyperlocal metric that will only tell you something about the exact location you place the sensor. We recommend wearing the sensor on a primary involved locomotor muscle, a place on your body that is active during the activity you’re performing. e.g. on your thigh during cycling or squats, the middle part of your upper leg during running, or on your lower arm during climbing. Of course, you are free to use more than one sensor! You can connect up to 4 sensors simultaneously and measure multiple areas at once. You’re not bound to this smartphone application. The Train.Red hardware is integrated into 3rd party apps allowing you to easily synchronise your data from multiple sources. Train.Red sensors can be connected to most Wahoo’s, Garmin’s, Suunto’s and several other devices. More information can be found on our website https://train.red/

Screenshots

Training Today4 screens
Train.Red APP4 screens

Verdict

The call

The clearest difference is in-app purchases: Train.Red APP at none against Training Today's 4. Train.Red APP also leads on rating (5.0 vs 4.6) and iOS requirement (13.0 vs 16.0). Training Today's advantage is ratings volume (2.6K vs 1). On price, update cadence, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Training Today sells 4 in-app purchases, starting at $2.95 per month. Train.Red APP asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Train.Red APP holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Training Today has 2.6K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Training Today ships an update every 6 weeks, Train.Red APP every 3 weeks. The most recent releases landed on September 25, 2026 and July 30, 2026 respectively.

Scorecard5 real differences · 5 level
Training Today versus Train.Red APP: the parameters behind the verdict, then further details
ParameterTraining TodayTrain.Red APP
PriceFreeFree
Rating4.6 (2.6K ratings)5.0 (1 ratings) — better
Positive reviews52.7% of reviews—
Number of ratings2.6K — better1
Update frequencyEvery 6 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, Apple WatchiPhone, iPad, iPod — better
Requires iOS16.013.0 — better
Further details — not scored
Size41 MB101 MB
Age rating4+4+
DeveloperBetoli LtdTrain.Red B.V.

Customer experience

Training Today

All ratings2,626 ratings
Positive89.5%
Neutral4.5%
Negative6.1%
Written reviews313 reviews
Positive52.7%
Neutral11.5%
Negative35.8%

Train.Red APP

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Training Today

Reported bugs

4 issues
  • Crashes on launch after purchasing subscription
  • Widgets not working after recent updates
  • Discrepancies between data shown on iPhone and Apple Watch
  • Inability to get HRV readings without using the Breathe app

Requested features

6 requests
  • Extend the number of days shown on the chart
  • Add more data points like sleep and oxygen levels
  • Provide more detailed explanations of the metrics and how they are calculated
  • Improve the Apple Watch complication to update more frequently
  • Integrate with other fitness platforms like Garmin and Polar
Show 1 more
  • Add training plans that adapt to HRV data

Train.Red APP

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

Training Today

Subscriptions2
  • Monthly subscription$2.951 Month
  • Yearly subscription$29.991 Year
One-time2
  • Additional charts$5.99
  • Lifetime$59.99
None

Train.Red APP

No in-app purchases

Questions

Is Training Today free?
Training Today is free to download, with in-app purchases available.
Is Train.Red APP free?
Train.Red APP is free to download, with no in-app purchases.
Which has better reviews, Training Today or Train.Red APP?
Train.Red APP is rated higher. Training Today averages 4.6 out of 5 from 2.6K ratings, while Train.Red APP averages 5.0 from 1 ratings.
Do Training Today or Train.Red APP have ads?
Neither Training Today nor Train.Red APP shows ads.
Which is updated more often, Training Today or Train.Red APP?
Training Today ships an update every 6 weeks, and Train.Red APP every 3 weeks. Most recently, Training Today was updated on September 25, 2026 and Train.Red APP on July 30, 2026.

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