# k vs GRINDS AIR

The clearest difference is update cadence: GRINDS AIR at every 2 months against k's every 32 months. 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.

k ships an update every 32 months, GRINDS AIR every 2 months. The most recent releases landed on October 9, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | k | GRINDS AIR |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 32 months | **Every 2 months** |
| Size | 30 MB | 34 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ASSA ABLOY (Schweiz) AG](https://appshunter.io/developer/1146407477) | [Matthias Friesen](https://appshunter.io/developer/1506710638) |

## What reviewers say

### k

[App page](https://appshunter.io/ios/app/k-entry/id1146407478)

**Features:** macOS Compatibility

**In-app purchases:** none


### GRINDS AIR

[App page](https://appshunter.io/ios/app/grinds-air/id1506710639)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is k free?

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

### Is GRINDS AIR free?

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

### Do k or GRINDS AIR have ads?

Neither k nor GRINDS AIR shows ads.

### Which is updated more often, k or GRINDS AIR?

k ships an update every 32 months, and GRINDS AIR every 2 months. Most recently, k was updated on October 9, 2026 and GRINDS AIR on October 1, 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.*