# Viessmann Access vs Home Integrator Core

The clearest difference is in-app purchases: Viessmann Access at none against Home Integrator Core's 1. Viessmann Access also leads on iOS requirement (14 vs 18.6). Home Integrator Core's advantage is update cadence (monthly vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. Home Integrator Core sells 1 one-off in-app purchase. Viessmann Access asks for nothing beyond the download.

Viessmann Access ships an update every 4 months, Home Integrator Core monthly. The most recent releases landed on November 7, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Viessmann Access | Home Integrator Core |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Size | 129 MB | 7 MB |
| Requires iOS | **14** | 18.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Viessmann IT Service GmbH](https://appshunter.io/developer/1801739683) | [Tony Scott](https://appshunter.io/developer/1873116098) |

## What reviewers say

### Viessmann Access

[App page](https://appshunter.io/ios/app/viessmann-access/id1533222623)

**In-app purchases:** none


### Home Integrator Core

[App page](https://appshunter.io/ios/app/home-integrator-core-ha/id6758562409)

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Home Integrator Core Remote Pro | $4.99 | one-time |


## Frequently asked questions

### Is Viessmann Access free?

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

### Is Home Integrator Core free?

Home Integrator Core is free to download, with in-app purchases available.

### Do Viessmann Access or Home Integrator Core have ads?

Neither Viessmann Access nor Home Integrator Core shows ads.

### Which is updated more often, Viessmann Access or Home Integrator Core?

Viessmann Access ships an update every 4 months, and Home Integrator Core monthly. Most recently, Viessmann Access was updated on November 7, 2026 and Home Integrator Core on October 28, 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.*