# Tacx Training™ vs HR Speed Transmitter

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.

Both are free to download. HR Speed Transmitter sells 1 one-off in-app purchase. Tacx Training™ asks for nothing beyond the download.

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.

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.

## The numbers

| Metric | Tacx Training™ | HR Speed Transmitter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (16K ratings)](https://appshunter.io/ios/app/tacx-training/id892366151/reviews)** | [2.0 (3 ratings)](https://appshunter.io/ios/app/hr-speed-transmitter/id1472518769/reviews) |
| Number of ratings | **16K** | 3 |
| Positive reviews | **41.9% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Freemium | Free with in-app purchases |
| Size | 363 MB | 68 MB |
| Requires iOS | 16.0 | **9.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Garmin](https://appshunter.io/developer/411046952) | [BIPR](https://appshunter.io/developer/1472518768) |

## What reviewers say

### Tacx Training™

[App page](https://appshunter.io/ios/app/tacx-training/id892366151)

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)

**In-app purchases:** none

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

- 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**

- 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


### HR Speed Transmitter

[App page](https://appshunter.io/ios/app/hr-speed-transmitter/id1472518769)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Manual Mode Time Limit Unlock | $0.99 | one-time |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*