# BesteksAdministratie vs FlexApp Katwijk

The clearest difference is update cadence: BesteksAdministratie at every 2 months against FlexApp Katwijk's every 19 months. FlexApp Katwijk's advantage is iOS requirement (11.0 vs 13.0). 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.

BesteksAdministratie ships an update every 2 months, FlexApp Katwijk every 19 months. The most recent releases landed on May 19, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | BesteksAdministratie | FlexApp Katwijk |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 19 months |
| Size | 28 MB | 37 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Brink Software B.V.](https://appshunter.io/developer/696568834) | [Approxx B.V.](https://appshunter.io/developer/1340312349) |

## What reviewers say

### BesteksAdministratie

[App page](https://appshunter.io/ios/app/besteksadministratie/id1252579540)

**Features:** macOS Compatibility

**In-app purchases:** none


### FlexApp Katwijk

[App page](https://appshunter.io/ios/app/flexapp-katwijk/id1588364368)

**In-app purchases:** none


## Frequently asked questions

### Is BesteksAdministratie free?

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

### Is FlexApp Katwijk free?

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

### Do BesteksAdministratie or FlexApp Katwijk have ads?

Neither BesteksAdministratie nor FlexApp Katwijk shows ads.

### Which is updated more often, BesteksAdministratie or FlexApp Katwijk?

BesteksAdministratie ships an update every 2 months, and FlexApp Katwijk every 19 months. Most recently, BesteksAdministratie was updated on May 19, 2026 and FlexApp Katwijk on September 22, 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.*