# King Song vs eBike Flow

The clearest difference is rating: eBike Flow at 4.6 against King Song's 2.5. eBike Flow also leads on review sentiment (51% vs 20%) and ratings volume (2.2K vs 41). King Song's advantage is in-app purchases (none vs 4) and iOS requirement (14.0 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. eBike Flow sells 4 in-app purchases, starting at $3.99 per month. King Song asks for nothing beyond the download.

eBike Flow holds the better App Store score, 4.6 against 2.5. That said, the two scores are not equally well evidenced: eBike Flow has 2.2K ratings behind it against 41, so its average is the more settled of the two. Written reviews point the same way: 20% of King Song's written reviews are positive against 51% of eBike Flow's.

King Song ships an update every 3 weeks, eBike Flow every 6 weeks. The most recent releases landed on October 19, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | King Song | eBike Flow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.5 (41 ratings)](https://appshunter.io/ios/app/king-song/id1497491652/reviews) | **[4.6 (2.2K ratings)](https://appshunter.io/ios/app/ebike-flow/id1559900907/reviews)** |
| Number of ratings | 41 | **2.2K** |
| Positive reviews | 19.6% of reviews | **51.2% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 113 MB | 315 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen King Song Technology Co,.LTD](https://appshunter.io/developer/1882293121) | [Robert Bosch GmbH](https://appshunter.io/developer/397121518) |

## What reviewers say

### 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


### eBike Flow

[App page](https://appshunter.io/ios/app/ebike-flow/id1559900907)

Enhance your eBike experience with smart features for safety, personalization, and comfort. Protect against theft, plan routes, customize riding modes, and track your activities. Keep your eBike updated with the latest functions.

**Highlights:** Theft protection (eBike Lock & Alarm), Smart navigation and route planning, Customizable riding modes, Activity tracking and fitness analysis, Over-the-air updates, Display configuration

**Features:** Apple Watch app

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flow+ (monthly) | $3.99 | per month |
| Flow+ (monthly) | $3.99 | per month |
| Flow+ (year) | $34.99 | per year |
| Flow+ (year) | $34.99 | per year |

**What reviewers like**

- 🚀 Smooth and reliable
- 👍 Intuitive and user-friendly
- 🔒 Secure with lock and alarm features
- 💡 Customizable motor modes
- 💡 Integrates with Komoot for route planning

**What reviewers complain about**

- 🐛 Inconsistent GPS tracking and navigation
- 🔋 High battery drain on smartphones
- 🔍 Limited data export options
- 🤔 Requires smartphone for full functionality

**Reported bugs**

- Occasional connectivity issues when pairing bike
- Route planning sometimes generates inaccurate routes
- Ride data not always syncing correctly with Apple Health

**Requested features**

- Add support for heart rate sensors
- Improve integration with Garmin devices
- Allow multiple users/phones to be paired with one bike
- Provide offline navigation on Kiox 300 display
- Add option to customize Kiox 300 data screens


## Frequently asked questions

### Is King Song free?

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

### Is eBike Flow free?

eBike Flow is free to download, with in-app purchases available.

### Which has better reviews, King Song or eBike Flow?

eBike Flow is rated higher. King Song averages 2.5 out of 5 from 41 ratings, while eBike Flow averages 4.6 from 2.2K ratings.

### Do King Song or eBike Flow have ads?

Neither King Song nor eBike Flow shows ads.

### Which is updated more often, King Song or eBike Flow?

King Song ships an update every 3 weeks, and eBike Flow every 6 weeks. Most recently, King Song was updated on October 19, 2026 and eBike Flow on October 17, 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.*