# K vs Go2Pro

The clearest difference is in-app purchases: Go2Pro at none against K's 9. Go2Pro also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. K sells 9 in-app purchases, starting at $3.99 per month. Go2Pro asks for nothing beyond the download.

K ships an update weekly, Go2Pro every 4 days. The most recent releases landed on October 19, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | K | Go2Pro |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Weekly | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 108 MB | 47 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [K-Sport World S.r.l](https://appshunter.io/developer/1706833497) | [LUTIN UK LTD](https://appshunter.io/developer/1839249649) |

## What reviewers say

### K

[App page](https://appshunter.io/ios/app/k-fans-training/id6670202026)

This app uses AI to monitor your sports performance, providing real-time feedback to help you improve. It measures data with high accuracy and is designed for comfort and durability during any activity. Connect with friends, train like a pro, and challenge others.

**Highlights:** AI-powered performance monitoring, Real-time feedback, Accurate data measurement, Durable and comfortable design, Play and train with friends, Challenge other players

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Standard | $3.99 | per month |
| Monthly Plus | $8.99 | per month |
| Monthly Premium | $12.99 | per month |
| Yearly Standard | $34.99 | per year |
| Yearly Plus | $69.99 | per year |
| Yearly Premium | $99.99 | per year |
| 5.000 K-Coins | $22.99 | one-time |
| 10.000 K-Coins | $34.99 | one-time |
| 20.000 K-Coins | $49.99 | one-time |


### Go2Pro

[App page](https://appshunter.io/ios/app/go2pro/id6753179801)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is K free?

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

### Is Go2Pro free?

Go2Pro is free to download, with no in-app purchases.

### Do K or Go2Pro have ads?

K shows ads; Go2Pro does not.

### Which is updated more often, K or Go2Pro?

K ships an update weekly, and Go2Pro every 4 days. Most recently, K was updated on October 19, 2026 and Go2Pro on October 30, 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.*