Comparison

Tacx Training™ vs HR Speed Transmitter

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 with virtual routes and real-time data. Train with adjustable resistance, track performance, and connect with other cyclists. Offers free and premium features for personalized fitness.

Highlights
  • Immersive virtual routes
  • Real-time performance data
  • Auto-adjusting trainer resistance
  • Garmin Connect integration
  • Virtual GroupRides
  • Offline video route access (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

HR Speed Transmitter

This app transforms your phone into a Bluetooth server, broadcasting treadmill speed to compatible applications. It functions as a standard running speed and cadence sensor, allowing manual speed adjustments up to 18 km/h. A free version is available with a five-minute limit.

Highlights
  • Phone as Bluetooth server
  • Broadcasts HR and speed
  • Compatible with other apps
  • Manual speed adjustment
  • Up to 18 km/h speed limit
Features
Read full description

Your phone will be converted into Bluetooth server which will broadcast treadmill speed to any compatible application. This way, your phone will act as a standard running speed and cadence sensor. You will be able to set manually your running speed with 0.1 increase step up to 18 km/h (11.2 mph). The free version is limited to five minutes, otherwise you will have to purchase the full version of the application.

Screenshots

Tacx Training™4 screens
HR Speed Transmitter1 screens

Verdict

The call

The clearest difference is rating: Tacx Training™ at 4.6 against HR Speed Transmitter's 2.0. Tacx Training™ also leads on review sentiment (42% vs 0%) and in-app purchases (none vs 1). HR Speed Transmitter's advantage is iOS requirement (9.0 vs 16.0). On price, ads, monetization model 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. HR Speed Transmitter sells 1 one-off in-app purchase. Tacx Training™ asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Tacx Training™ holds the better App Store score, 4.6 against 2.0. That said, the two scores are not equally well evidenced: Tacx Training™ has 16K ratings behind it against 3, 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 0% of HR Speed Transmitter's.

UpkeepUpdate frequency

Tacx Training™ ships an update every 3 weeks, HR Speed Transmitter every 2 months. The most recent releases landed on November 8, 2026 and November 3, 2026 respectively.

Scorecard6 real differences · 4 level
Tacx Training™ versus HR Speed Transmitter: the parameters behind the verdict, then further details
ParameterTacx Training™HR Speed Transmitter
PriceFreeFree
Rating4.6 (16K ratings) — better2.0 (3 ratings)
Positive reviews41.9% of reviews — better0.0% of reviews
Number of ratings16K — better3
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS16.09.0 — better
Further details — not scored
Size363 MB68 MB
Age rating4+4+
DeveloperGarminBIPR

Customer experience

Tacx Training™

All ratings15,903 ratings
Positive90.3%
Neutral4.8%
Negative4.9%
Written reviews739 reviews
Positive41.9%
Neutral12.3%
Negative45.7%

HR Speed Transmitter

All ratings3 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews4 reviews
Positive0.0%
Neutral25.0%
Negative75.0%

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

HR Speed Transmitter

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Tacx Training™

No in-app purchases

1 purchases

HR Speed Transmitter

One-time1
  • Manual Mode Time Limit Unlock$0.99

Questions

Is Tacx Training™ free?
Tacx Training™ is free to download, with no in-app purchases.
Is HR Speed Transmitter free?
HR Speed Transmitter is free to download, with in-app purchases available.
Which has better reviews, Tacx Training™ or HR Speed Transmitter?
Tacx Training™ is rated higher. Tacx Training™ averages 4.6 out of 5 from 16K ratings, while HR Speed Transmitter averages 2.0 from 3 ratings.
Do Tacx Training™ or HR Speed Transmitter have ads?
Neither Tacx Training™ nor HR Speed Transmitter shows ads.
Which is updated more often, Tacx Training™ or HR Speed Transmitter?
Tacx Training™ ships an update every 3 weeks, and HR Speed Transmitter every 2 months. Most recently, Tacx Training™ was updated on November 8, 2026 and HR Speed Transmitter on November 3, 2026.

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