# Sun WEG vs Nansen Solar

The clearest difference is iOS requirement: Sun WEG at 13.0 against Nansen Solar's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Sun WEG ships an update monthly, Nansen Solar every 6 weeks. The most recent releases landed on September 19, 2026 and August 29, 2026 respectively.

## The numbers

| Metric | Sun WEG | Nansen Solar |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 10.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 weeks |
| Monetization | Free | — |
| Size | 47 MB | 136 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | +4 | 9+ |
| Developer | [WEG Equipamentos Eletricos S/A](https://appshunter.io/developer/575847223) | [鑫 俞](https://appshunter.io/developer/1714265333) |

## What reviewers say

### Sun WEG

[App page](https://appshunter.io/ios/app/sun-weg/id1618484332)

Monitor and manage your photovoltaic plant's generation factors. The system continuously analyzes your equipment and operators to prevent unwanted downtime that impacts energy production.

**Highlights:** Control photovoltaic plant generation factors, Continuous equipment analysis, Operator monitoring, Prevent unwanted downtime, Optimize energy production

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

**In-app purchases:** none


### Nansen Solar

[App page](https://appshunter.io/ios/app/nansen-solar/id6472117388)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sun WEG free?

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

### Is Nansen Solar free?

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

### Do Sun WEG or Nansen Solar have ads?

Neither Sun WEG nor Nansen Solar shows ads.

### Which is updated more often, Sun WEG or Nansen Solar?

Sun WEG ships an update monthly, and Nansen Solar every 6 weeks. Most recently, Sun WEG was updated on September 19, 2026 and Nansen Solar on August 29, 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.*