# KSB FlowManager vs SCHELL

The clearest difference is update cadence: SCHELL at every 2 weeks against KSB FlowManager's every 6 weeks. KSB FlowManager's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.2). On price, ads and in-app purchases there is nothing between them.

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

KSB FlowManager ships an update every 6 weeks, SCHELL every 2 weeks. The most recent releases landed on October 5, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | KSB FlowManager | SCHELL |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Size | 260 MB | 183 MB |
| Requires iOS | **13.0** | 17.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [KSB SE & Co. KGaA](https://appshunter.io/developer/533763415) | [SCHELL Armaturentechnologe GmbH & Co KG](https://appshunter.io/developer/1151157542) |

## What reviewers say

### KSB FlowManager

[App page](https://appshunter.io/ios/app/ksb-flowmanager/id1251906586)

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

**In-app purchases:** none


### SCHELL

[App page](https://appshunter.io/ios/app/schell/id6444608310)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is KSB FlowManager free?

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

### Is SCHELL free?

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

### Do KSB FlowManager or SCHELL have ads?

Neither KSB FlowManager nor SCHELL shows ads.

### Which is updated more often, KSB FlowManager or SCHELL?

KSB FlowManager ships an update every 6 weeks, and SCHELL every 2 weeks. Most recently, KSB FlowManager was updated on October 5, 2026 and SCHELL on September 18, 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.*