# catkin SmartApp vs BLUMENSTOCK

The clearest difference is update cadence: catkin SmartApp at every 2 weeks against BLUMENSTOCK's every 30 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.

catkin SmartApp ships an update every 2 weeks, BLUMENSTOCK every 30 months. The most recent releases landed on October 12, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | catkin SmartApp | BLUMENSTOCK |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 30 months |
| Size | 98 MB | 35 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [catkin GmbH](https://appshunter.io/developer/1288520015) | [Blumenstock Immobilienmanagement GmbH](https://appshunter.io/developer/1566716509) |

## What reviewers say

### catkin SmartApp

[App page](https://appshunter.io/ios/app/catkin-smartapp/id1475879192)

**Features:** macOS Compatibility

**In-app purchases:** none


### BLUMENSTOCK

[App page](https://appshunter.io/ios/app/blumenstock/id1566716507)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is catkin SmartApp free?

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

### Is BLUMENSTOCK free?

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

### Do catkin SmartApp or BLUMENSTOCK have ads?

Neither catkin SmartApp nor BLUMENSTOCK shows ads.

### Which is updated more often, catkin SmartApp or BLUMENSTOCK?

catkin SmartApp ships an update every 2 weeks, and BLUMENSTOCK every 30 months. Most recently, catkin SmartApp was updated on October 12, 2026 and BLUMENSTOCK on October 27, 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.*