# PV Lite vs Aray Ess

The clearest difference is update cadence: PV Lite at every 3 weeks against Aray Ess's every 3 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 Lite ships an update every 3 weeks, Aray Ess every 3 months. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | PV Lite | Aray Ess |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/pv-lite/id1585753730/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Free | — |
| Size | 158 MB | 29 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Chengdu E-Linter Information Technology Co., Ltd.](https://appshunter.io/developer/1149235329) | [深圳市傲雷新能源科技有限公司](https://appshunter.io/developer/1830665558) |

## What reviewers say

### PV Lite

[App page](https://appshunter.io/ios/app/pv-lite/id1585753730)

Monitor photovoltaic power plant operations with real-time status updates and clear generation reports. Track daily, monthly, and yearly energy output conveniently. Note: Continued GPS use for station creation may impact battery life.

**Highlights:** Real-time power plant status monitoring, Daily, monthly, and yearly generation reports, Convenient and quick access to data, GPS positioning for power station creation

**Features:** macOS Compatibility

**In-app purchases:** none


### Aray Ess

[App page](https://appshunter.io/ios/app/aray-ess/id6752018449)

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

**In-app purchases:** none


## Frequently asked questions

### Is PV Lite free?

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

### Is Aray Ess free?

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

### Do PV Lite or Aray Ess have ads?

Neither PV Lite nor Aray Ess shows ads.

### Which is updated more often, PV Lite or Aray Ess?

PV Lite ships an update every 3 weeks, and Aray Ess every 3 months. Most recently, PV Lite was updated on November 3, 2026 and Aray Ess on November 5, 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.*