# Börlind WOS vs Krone Filter Solutions

The clearest difference is update cadence: Börlind WOS at every 6 weeks against Krone Filter Solutions's every 19 months. Börlind WOS also leads on iOS requirement (12.0 vs 14.0). 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.

Börlind WOS ships an update every 6 weeks, Krone Filter Solutions every 19 months. The most recent releases landed on May 16, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Börlind WOS | Krone Filter Solutions |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 19 months |
| Size | 9 MB | 34 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SMP Schnell & Michaelis GmbH](https://appshunter.io/developer/392278269) | [webad - internet advertising GmbH](https://appshunter.io/developer/1629851567) |

## What reviewers say

### Börlind WOS

[App page](https://appshunter.io/ios/app/borlind-wos/id891687477)

**Features:** macOS Compatibility

**In-app purchases:** none


### Krone Filter Solutions

[App page](https://appshunter.io/ios/app/krone-filter-solutions/id1629851565)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Börlind WOS free?

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

### Is Krone Filter Solutions free?

Krone Filter Solutions is free to download, with no in-app purchases.

### Do Börlind WOS or Krone Filter Solutions have ads?

Neither Börlind WOS nor Krone Filter Solutions shows ads.

### Which is updated more often, Börlind WOS or Krone Filter Solutions?

Börlind WOS ships an update every 6 weeks, and Krone Filter Solutions every 19 months. Most recently, Börlind WOS was updated on May 16, 2026 and Krone Filter Solutions on September 13, 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.*