# Hargassner vs ViParts

The clearest difference is review sentiment: Hargassner at 50% against ViParts's 14%. ViParts's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Hargassner ships an update every 2 months, ViParts every 3 weeks. The most recent releases landed on October 10, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Hargassner | ViParts |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **50.0% of reviews** | 14.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 58 MB | 33 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hargassner Ges.m.b.H.](https://appshunter.io/developer/885812808) | [Viessmann IT Service GmbH](https://appshunter.io/developer/1801739683) |

## What reviewers say

### Hargassner

[App page](https://appshunter.io/ios/app/hargassner/id1523536070)

Control your Hargassner heating system remotely with AI assistance. Monitor your system's status, adjust settings like heating circuits and water preparation, and receive instant notifications. Access more features via the web portal.

**Highlights:** Real-time heating system overview, Remote adjustment of heating circuits and times, Domestic hot water preparation settings, AI support assistant 'Hargy', Push notifications for system status, Solar system monitoring, Temperature trend graphs

**Features:** Vision Pro support

**In-app purchases:** none


### ViParts

[App page](https://appshunter.io/ios/app/viparts/id6477911742)

Access comprehensive information on spare parts and place orders directly. Identify parts using exploded drawings, barcode scanning, and compatibility checks. View technical documents and check availability and pricing.

**Highlights:** Spare part identification via exploded drawings, Barcode scanner for material numbers, Maintenance parts display, Product and spare part compatibility check, Direct spare part ordering, Access to technical documents, Availability and price display

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Hargassner free?

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

### Is ViParts free?

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

### Do Hargassner or ViParts have ads?

Neither Hargassner nor ViParts shows ads.

### Which is updated more often, Hargassner or ViParts?

Hargassner ships an update every 2 months, and ViParts every 3 weeks. Most recently, Hargassner was updated on October 10, 2026 and ViParts on October 20, 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.*