Comparison

Tacx Training™ vs Keiser M Series

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

Head to head
About

Tacx Training™

Transform indoor cycling into immersive outdoor experiences. Connect to a smart trainer to simulate real-world terrain and track performance data. Enjoy virtual rides, challenges, and sync with other devices for comprehensive training.

Highlights
  • Simulate real-world climbs and descents
  • Real-time speed, power, and cadence data
  • Automatic trainer resistance adjustment
  • Syncs with Garmin Connect and Coach
  • Virtual GroupRides and challenges
  • Access to 500+ video routes (Premium)
Read full description

RIDE INDOORS, FEEL OUTDOORS Connect your Tacx™ smart trainer with the Tacx Training app to turn indoor sessions into immersive rides. Tackle steep Alpine and Pyrenean climbs or conquer the cobblestones of Roubaix right from your living room. New routes around the world are added every month. TRAIN WITH REAL DATA, IN REAL TIME When paired with a compatible Tacx smart trainer and other accessories, you can see speed, power, cadence, and heart rate data on screen while your trainer resistance auto-adjusts for realistic climbs and descents. Connect with a Tacx Alpine gradient simulator for an even more immersive climbing and descending experience. INTEGRATE WITH OTHER GARMIN PRODUCTS When you finish a workout in the app, the data automatically uploads to the Garmin Connect™ app to update performance stats, inform training plan workout recommendations, and more. Your Garmin Connect workouts are automatically synced with the Tacx Training app. MOTIVATION THAT LASTS Earn badges by completing challenges, ride with others in real time, or organize virtual GroupRides with your Tacx friends. Download and use the app for free, or upgrade to premium at any time. Free: • Create and perform workouts based on slope, power, or FTP • View and complete your scheduled workouts from Garmin Connect and Garmin Coach • Your rides and workouts automatically sync to Garmin Connect for analysis • View your data across phone, tablet, and desktop Premium: • Gain access to more than 500 high-quality video routes • Download your favorite videos and ride offline • See other live riders and ride with others in real time • Participate in multi-stage challenges • Plan virtual GroupRides with friends Requirements: • Bluetooth 4.0 or later for Tacx Smart trainer connections • Internet is required for video streaming and live features Don’t forget to contact our support team if you have any questions, concerns, or feature requests. Official Garmin app.

About

Keiser M Series

This app collects data from Keiser M Series Intelligent equipment, offering real-time training metrics like power and cadence. It supports free rides, FTP tests, and guided workouts, syncing data to the Keiser Metrics cloud and compatible platforms.

Highlights
  • Real-time training graphs
  • Power, cadence, FTP zones
  • Free ride mode
  • FTP test functionality
  • Guided workout sessions
  • Workout data syncing
Features
Read full description

The Keiser M Series app is a powerful tool for collecting data from Keiser M Series Intelligent equipment. Quickly connect to equipment and begin training with real-time graphs for power, cadence range dials, FTP zones, and W/Kg ratios. Choose to free ride, perform an FTP test, or follow one of the guided sessions designed by Keiser Master Trainers. Sign in with your Keiser Metrics account to sync workout sessions with the Keiser Metrics cloud. Keiser Metrics allows advanced analysis and review of workout sessions. Connect Keiser Metrics to other cloud platforms like Apple Health, Strava, and TrainingPeaks for automatic session syncing! For more information about this app or other Keiser products, please visit our website at https://www.keiser.com.

Screenshots

Tacx Training™4 screens
Keiser M Series4 screens

Verdict

The call

The clearest difference is monetization model: Keiser M Series at free against Tacx Training™'s freemium. Keiser M Series also leads on update cadence (weekly vs every 3 weeks) and iOS requirement (13.0 vs 16.0). Tacx Training™'s advantage is review sentiment (42% vs 20%) and rating (4.6 vs 4.3). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Tacx Training™ holds the better App Store score, 4.6 against 4.3. That said, the two scores are not equally well evidenced: Tacx Training™ has 16K ratings behind it against 2.9K, so its average is the more settled of the two. Written reviews point the same way: 42% of Tacx Training™'s written reviews are positive against 20% of Keiser M Series's.

UpkeepUpdate frequency

Tacx Training™ ships an update every 3 weeks, Keiser M Series weekly. The most recent releases landed on October 31, 2026 and October 29, 2026 respectively.

Scorecard6 real differences · 4 level
Tacx Training™ versus Keiser M Series: the parameters behind the verdict, then further details
ParameterTacx Training™Keiser M Series
PriceFreeFree
Rating4.6 (16K ratings) — better4.3 (2.9K ratings)
Positive reviews41.9% of reviews — better19.5% of reviews
Number of ratings16K — better2.9K
Update frequencyEvery 3 weeksWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreemiumFree — better
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS16.013.0 — better
Further details — not scored
Size363 MB77 MB
Age rating4+12+
DeveloperGarminKeiser Corp.

Customer experience

Tacx Training™

All ratings15,851 ratings
Positive90.4%
Neutral4.8%
Negative4.8%
Written reviews737 reviews
Positive41.9%
Neutral12.3%
Negative45.7%

Keiser M Series

All ratings2,858 ratings
Positive81.6%
Neutral5.6%
Negative12.8%
Written reviews256 reviews
Positive19.5%
Neutral14.5%
Negative66.0%

User reviews

Tacx Training™

From 16K App Store ratings

What we love

  • 🚀 Great workout software
  • 🚀 Excellent video quality and variety
  • 🚀 Seamless integration with Garmin
  • 👍 Easy to use
  • 👍 Realistic riding experience

Room to improve

  • 🐛 Frequent connection issues
  • 🐛 Buggy and unreliable app
  • 🐛 Crashes during rides
  • 🐛 Data loss and syncing problems
  • 🔒 Poor customer support

Keiser M Series

From 2.9K App Store ratings

What we love

  • 🚀 Quick connection to equipment
  • 👍 Easy to use
  • 👍 Useful guided sessions
  • 👍 Integrates with Strava

Room to improve

  • 🐛 Disconnects quickly
  • 🐛 Inaccurate distance and power data
  • 🐛 Loses connectivity when switching apps
  • 🐛 Unreliable data recording
  • 🐛 Difficult to use in group settings

Bugs and requests

Tacx Training™

Reported bugs

5 issues
  • Inconsistent power and speed readings
  • Inability to resume paused rides
  • Connectivity issues with Bluetooth sensors
  • Calibration problems with trainers
  • Compatibility issues with older devices

Requested features

6 requests
  • Ability to download videos for offline use
  • More detailed performance analytics
  • Integration with other fitness apps (e.g. Apple Health)
  • Better customization options for data screens
  • Audio cues and prompts during workouts
Show 1 more
  • Ability to create and edit custom routes

Keiser M Series

Reported bugs

4 issues
  • App frequently logs users out
  • Inconsistent data recording and syncing
  • Compatibility issues with newer devices and iOS versions
  • Inability to save user profiles and settings

Requested features

5 requests
  • Integration with Apple Watch for heart rate data
  • Background app functionality
  • More customizable workout options
  • Better data visualization and progress tracking
  • Improved Strava and other app integrations

In-app purchases

None

Tacx Training™

No in-app purchases

None

Keiser M Series

No in-app purchases

Questions

Is Tacx Training™ free?
Tacx Training™ is free to download, with no in-app purchases.
Is Keiser M Series free?
Keiser M Series is free to download, with no in-app purchases.
Which has better reviews, Tacx Training™ or Keiser M Series?
Tacx Training™ is rated higher. Tacx Training™ averages 4.6 out of 5 from 16K ratings, while Keiser M Series averages 4.3 from 2.9K ratings.
Do Tacx Training™ or Keiser M Series have ads?
Neither Tacx Training™ nor Keiser M Series shows ads.
Which is updated more often, Tacx Training™ or Keiser M Series?
Tacx Training™ ships an update every 3 weeks, and Keiser M Series weekly. Most recently, Tacx Training™ was updated on October 31, 2026 and Keiser M Series on October 29, 2026.

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