# Mastersol Wifi vs Calpak VBus®Touch

The clearest difference is update cadence: Calpak VBus®Touch at fortnightly against Mastersol Wifi's every 23 months. Calpak VBus®Touch also leads on iOS requirement (9.0 vs 14.2). 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.

Mastersol Wifi ships an update every 23 months, Calpak VBus®Touch fortnightly. The most recent releases landed on October 9, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Mastersol Wifi | Calpak VBus®Touch |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 23 months | **Fortnightly** |
| Monetization | — | Free |
| Size | 104 MB | 48 MB |
| Requires iOS | 14.2 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pro Smart](https://appshunter.io/developer/1087882545) | [RESOL GmbH](https://appshunter.io/developer/369420321) |

## What reviewers say

### Mastersol Wifi

[App page](https://appshunter.io/ios/app/mastersol-wifi/id1290877039)

**Features:** macOS Compatibility

**In-app purchases:** none


### Calpak VBus®Touch

[App page](https://appshunter.io/ios/app/calpak-vbustouch/id1437870061)

Visualize your solar energy production with detailed charts and diagrams. Monitor heat gained and temperature progression to understand your system's performance. Requires a compatible controller and internet connection.

**Highlights:** Solar yield visualization, Hydraulic scheme display, Temperature progression chart, Modular add-ons for extended features, Real-time performance monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mastersol Wifi free?

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

### Is Calpak VBus®Touch free?

Calpak VBus®Touch is free to download, with no in-app purchases.

### Do Mastersol Wifi or Calpak VBus®Touch have ads?

Neither Mastersol Wifi nor Calpak VBus®Touch shows ads.

### Which is updated more often, Mastersol Wifi or Calpak VBus®Touch?

Mastersol Wifi ships an update every 23 months, and Calpak VBus®Touch fortnightly. Most recently, Mastersol Wifi was updated on October 9, 2026 and Calpak VBus®Touch on October 4, 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.*