# KRL SmartBox vs FLEX PressControl

The clearest difference is iOS requirement: FLEX PressControl at 11.0 against KRL SmartBox's 15.1. On price, update cadence, 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.

KRL SmartBox ships an update every 7 months, FLEX PressControl every 5 months. The most recent releases landed on October 5, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | KRL SmartBox | FLEX PressControl |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 5 months** |
| Size | 33 MB | 62 MB |
| Requires iOS | 15.1 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Witte Metallwaren Handelsges. mbH & Co. KG](https://appshunter.io/developer/979847433) | [FLEX-Elektrowerkzeuge GmbH](https://appshunter.io/developer/1064919520) |

## What reviewers say

### KRL SmartBox

[App page](https://appshunter.io/ios/app/krl-smartbox/id6477445537)

**Features:** macOS Compatibility

**In-app purchases:** none


### FLEX PressControl

[App page](https://appshunter.io/ios/app/flex-presscontrol/id6502993934)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KRL SmartBox free?

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

### Is FLEX PressControl free?

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

### Do KRL SmartBox or FLEX PressControl have ads?

Neither KRL SmartBox nor FLEX PressControl shows ads.

### Which is updated more often, KRL SmartBox or FLEX PressControl?

KRL SmartBox ships an update every 7 months, and FLEX PressControl every 5 months. Most recently, KRL SmartBox was updated on October 5, 2026 and FLEX PressControl on October 16, 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.*