# VBU INVERTER vs Balcony Solar optimizer

The clearest difference is iOS requirement: VBU INVERTER at 12.0 against Balcony Solar optimizer's 26.4. 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.

## The numbers

| Metric | VBU INVERTER | Balcony Solar optimizer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Size | 48 MB | 6 MB |
| Requires iOS | **12.0** | 26.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [明玉 徐](https://appshunter.io/developer/1798426614) | [Patrick Christensen](https://appshunter.io/developer/1618808605) |

## What reviewers say

### VBU INVERTER

[App page](https://appshunter.io/ios/app/vbu-inverter/id6743142811)

**Features:** macOS Compatibility

**In-app purchases:** none


### Balcony Solar optimizer

[App page](https://appshunter.io/ios/app/balcony-solar-optimizer/id6767010381)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases:** none


## Frequently asked questions

### Is VBU INVERTER free?

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

### Is Balcony Solar optimizer free?

Balcony Solar optimizer is free to download, with no in-app purchases.

### Do VBU INVERTER or Balcony Solar optimizer have ads?

Neither VBU INVERTER nor Balcony Solar optimizer shows ads.

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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.*