# PV Master vs DeyeOSS

The clearest difference is update cadence: DeyeOSS at every 9 days against PV Master's every 2 months. 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.

PV Master ships an update every 2 months, DeyeOSS every 9 days. The most recent releases landed on September 13, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | PV Master | DeyeOSS |
| --- | --- | --- |
| 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 | **Every 9 days** |
| Monetization | Free | — |
| Size | 74 MB | 84 MB |
| Requires iOS | 12.0 | **11.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [GoodWe Technologies Co., Ltd.](https://appshunter.io/developer/833350490) | [Zhejiang Deye Electrical Appliances Co., Ltd.](https://appshunter.io/developer/1332604988) |

## 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


### DeyeOSS

[App page](https://appshunter.io/ios/app/deyeoss/id6451098737)

**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 DeyeOSS free?

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

### Do PV Master or DeyeOSS have ads?

Neither PV Master nor DeyeOSS shows ads.

### Which is updated more often, PV Master or DeyeOSS?

PV Master ships an update every 2 months, and DeyeOSS every 9 days. Most recently, PV Master was updated on September 13, 2026 and DeyeOSS on September 14, 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.*