# OneSporter vs K

The clearest difference is ads: OneSporter at none against K's shown. OneSporter also leads on iOS requirement (11.0 vs 14.0). K's advantage is update cadence (weekly vs every 2 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. OneSporter sells 4 in-app purchases, starting at $7.99 per month and K sells 9 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

OneSporter ships an update every 2 months, K weekly. Both last shipped on June 11, 2026.

## The numbers

| Metric | OneSporter | K |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 76 MB | 108 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [L4C SRL](https://appshunter.io/developer/1491719493) | [K-Sport World S.r.l](https://appshunter.io/developer/1706833497) |

## What reviewers say

### OneSporter

[App page](https://appshunter.io/ios/app/onesporter/id1491719494)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Athlete PRO - Monthly | $7.99 | per month |
| Coach PRO - Monthly | $14.99 | per month |
| Athlete PRO - Annual | $70.99 | per year |
| Coach PRO - Annual | $139.99 | per year |


### 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 |


## Frequently asked questions

### Is OneSporter free?

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

### Is K free?

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

### Do OneSporter or K have ads?

K shows ads; OneSporter does not.

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

OneSporter ships an update every 2 months, and K weekly. Most recently, OneSporter was updated on June 11, 2026 and K on June 11, 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.*