# Tacx Training™ vs King Song

The clearest difference is rating: Tacx Training™ at 4.6 against King Song's 2.5. Tacx Training™ also leads on ratings volume (16K vs 42) and review sentiment (42% vs 20%). King Song's advantage is monetization model (free vs freemium) and iOS requirement (14.0 vs 16.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Tacx Training™ holds the better App Store score, 4.6 against 2.5. That said, the two scores are not equally well evidenced: Tacx Training™ has 16K ratings behind it against 42, 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 King Song's.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 1, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Tacx Training™ | King Song |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (16K ratings)](https://appshunter.io/ios/app/tacx-training/id892366151/reviews)** | [2.5 (42 ratings)](https://appshunter.io/ios/app/king-song/id1497491652/reviews) |
| Number of ratings | **16K** | 42 |
| Positive reviews | **41.9% of reviews** | 19.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Freemium | **Free** |
| Size | 363 MB | 113 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Garmin](https://appshunter.io/developer/411046952) | [Shenzhen King Song Technology Co,.LTD](https://appshunter.io/developer/1882293121) |

## What reviewers say

### Tacx Training™

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

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)

**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


### King Song

[App page](https://appshunter.io/ios/app/king-song/id1497491652)

Connect to your electric unicycle to view detailed stats, unlock its full speed potential, and customize settings like LEDs and ride modes. Share your experiences, engage with other riders through a social platform, and discover new friends nearby.

**Highlights:** Device stats and connectivity, Speed unlock and device binding, Customizable wheel settings (LED, speed, ride mode), Social platform for sharing videos, Engage with other riders (chat, like, comment), Rider ranking system, Locate and connect with nearby riders

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Tacx Training™ free?

Tacx Training™ is free to download, with no in-app purchases.

### Is King Song free?

King Song is free to download, with no in-app purchases.

### Which has better reviews, Tacx Training™ or King Song?

Tacx Training™ is rated higher. Tacx Training™ averages 4.6 out of 5 from 16K ratings, while King Song averages 2.5 from 42 ratings.

### Do Tacx Training™ or King Song have ads?

Neither Tacx Training™ nor King Song shows ads.

### Which is updated more often, Tacx Training™ or King Song?

Tacx Training™ ships an update every 3 weeks, and King Song every 3 weeks. Most recently, Tacx Training™ was updated on November 1, 2026 and King Song on October 24, 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.*