Comparison

Tacx Training™ vs Scale Relay

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

Scale Relay

Read full description

Get your smart scale's weigh-ins into Garmin Connect, straight from your iPhone. Two ways in, one tap out. APPLE HEALTH ROUTE: ANY SCALE If your scale's app saves weight to the Health app, Scale Relay picks it up and sends it to Garmin Connect. Works with Withings, Renpho, Eufy, Etekcity, Zepp Life, Wyze, Picooc and any other app that writes weight to Apple Health. Body fat and BMI come along when your scale's app provides them. With the Sync to Garmin action in Shortcuts, an automation can send new weigh-ins without opening the app. BLUETOOTH ROUTE: XIAOMI SCALES, NO OTHER APP NEEDED Step on a Mi Body Composition Scale 2 or a Xiaomi Body Composition Scale S400 and Scale Relay reads the measurement directly: weight, body fat, muscle mass, bone mass, water, BMI and BMR. It can also save each weigh-in to Apple Health. The S400 needs a one-time authorization with your Xiaomi account. WHAT YOU GET • A preview of every weigh-in before it is sent; nothing leaves without your tap or your Shortcut • Body composition in Garmin Connect, not just the weight • Bluetooth weigh-ins saved to Apple Health too, if you turn it on • A Sync to Garmin action for Shortcuts and automations • Weigh-ins from the last 7 days are included; Garmin Sync unlocks older history • One Garmin sign-in, two-factor authentication supported • A "Sent to Garmin" list so you know what arrived FREE TO TRY Your first two syncs are free on either route. Unlimited syncing is a single one-time purchase called Garmin Sync. No subscription. PRIVACY FIRST Your measurements stay on your iPhone and go only to your own Garmin account and, if you choose, to Apple Health. No Scale Relay account, no tracking, no ads. REQUIREMENTS • iOS 17 or later • A Garmin Connect account • Apple Health route: any scale app that writes weight to the Health app • Bluetooth route: Mi Body Composition Scale 2 or Xiaomi Body Composition Scale S400 Scale Relay is an independent app. It is not affiliated with, endorsed by or associated with Garmin, Xiaomi, Withings, Renpho, Eufy, Etekcity, Zepp, Wyze, Picooc or any other scale or fitness-platform maker. Product names are trademarks of their respective owners.

Screenshots

Tacx Training™4 screens
Scale Relay4 screens

Verdict

The call

The clearest difference is in-app purchases: Tacx Training™ at none against Scale Relay's 1. Tacx Training™ also leads on device support (3 vs 1). On price, update cadence, ads and iOS requirement 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. Scale Relay sells 1 one-off in-app purchase. Tacx Training™ asks for nothing beyond the download.

UpkeepUpdate frequency

Tacx Training™ ships an update every 3 weeks, Scale Relay every 2 weeks. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
Tacx Training™ versus Scale Relay: the parameters behind the verdict, then further details
ParameterTacx Training™Scale Relay
PriceFreeFree
Rating4.6 (16K ratings) — better—
Positive reviews41.9% of reviews—
Number of ratings16K — better—
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreemium—
DevicesiPhone, iPad, Mac — betteriPhone
Requires iOS16.0 — better17.0
Further details — not scored
Size363 MB2 MB
Age rating4+4+
DeveloperGarminMarcin Naglik

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

Scale Relay

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Tacx Training™

No in-app purchases

1 purchases

Scale Relay

One-time1
  • Garmin Sync$14.99

Questions

Is Tacx Training™ free?
Tacx Training™ is free to download, with no in-app purchases.
Is Scale Relay free?
Scale Relay is free to download, with in-app purchases available.
Do Tacx Training™ or Scale Relay have ads?
Neither Tacx Training™ nor Scale Relay shows ads.
Which is updated more often, Tacx Training™ or Scale Relay?
Tacx Training™ ships an update every 3 weeks, and Scale Relay every 2 weeks. Most recently, Tacx Training™ was updated on November 1, 2026 and Scale Relay on October 31, 2026.

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