# PV Master vs Flow 33

PV Master and Flow 33 are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | PV Master | Flow 33 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (3 ratings)](https://appshunter.io/ios/app/pv-master/id833350487/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 13.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free | — |
| Size | 74 MB | 19 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GoodWe Technologies Co., Ltd.](https://appshunter.io/developer/833350490) | [COMAC CAL s.r.o.](https://appshunter.io/developer/1617806585) |

## What reviewers say

### PV Master

[App page](https://appshunter.io/ios/app/pv-master/id833350487)

This configuration tool connects to specific energy storage inverters via Wi-Fi or Bluetooth. It assists installers in setting up energy storage systems.

**Highlights:** Configure energy storage inverters, Wi-Fi direct connection, Bluetooth connection, Local configuration, Installation assistance

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

**In-app purchases:** none


### Flow 33

[App page](https://appshunter.io/ios/app/flow-33/id6779949810)

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

**In-app purchases:** none


## Frequently asked questions

### Is PV Master free?

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

### Is Flow 33 free?

Flow 33 is free to download, with no in-app purchases.

### Do PV Master or Flow 33 have ads?

Neither PV Master nor Flow 33 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.*