# Blattner Mobile vs Sentinel K9

The clearest difference is update cadence: Sentinel K9 at every 4 days against Blattner Mobile's every 5 weeks. 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.

Blattner Mobile ships an update every 5 weeks, Sentinel K9 every 4 days. The most recent releases landed on October 15, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Blattner Mobile | Sentinel K9 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (3 ratings)](https://appshunter.io/ios/app/blattner-mobile/id1361004316/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 4 days** |
| Monetization | Free | — |
| Size | 31 MB | 45 MB |
| Requires iOS | 16.1 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Quanta Services](https://appshunter.io/developer/1449726206) | [BusyPaws](https://appshunter.io/developer/1719876170) |

## What reviewers say

### Blattner Mobile

[App page](https://appshunter.io/ios/app/blattner-mobile/id1361004316)

Access forms and data through an integrated mobile application. This tool streamlines business operations by providing a centralized platform for essential information.

**Highlights:** Access forms, Access data, Integrated platform, Mobile access

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

**In-app purchases:** none


### Sentinel K9

[App page](https://appshunter.io/ios/app/sentinel-k9/id6795838263)

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

**In-app purchases:** none


## Frequently asked questions

### Is Blattner Mobile free?

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

### Is Sentinel K9 free?

Sentinel K9 is free to download, with no in-app purchases.

### Do Blattner Mobile or Sentinel K9 have ads?

Neither Blattner Mobile nor Sentinel K9 shows ads.

### Which is updated more often, Blattner Mobile or Sentinel K9?

Blattner Mobile ships an update every 5 weeks, and Sentinel K9 every 4 days. Most recently, Blattner Mobile was updated on October 15, 2026 and Sentinel K9 on October 1, 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.*