# GSF Pitstop vs K

The clearest difference is update cadence: GSF Pitstop at fortnightly against K's every 2 months. K's advantage is iOS requirement (12.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

GSF Pitstop ships an update fortnightly, K every 2 months. The most recent releases landed on October 27, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | GSF Pitstop | K |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Size | 83 MB | 69 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [GSF Car Parts](https://appshunter.io/developer/1731115164) | [Support Community, Inc.](https://appshunter.io/developer/1484074222) |

## What reviewers say

### GSF Pitstop

[App page](https://appshunter.io/ios/app/gsf-pitstop/id6477915629)

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

**In-app purchases:** none


### K

[App page](https://appshunter.io/ios/app/k-time-therapy-center/id6689495783)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is GSF Pitstop free?

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

### Is K free?

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

### Do GSF Pitstop or K have ads?

Neither GSF Pitstop nor K shows ads.

### Which is updated more often, GSF Pitstop or K?

GSF Pitstop ships an update fortnightly, and K every 2 months. Most recently, GSF Pitstop was updated on October 27, 2026 and K on October 10, 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.*