# Solar vs XIRCUM

The clearest difference is update cadence: Solar at every 2 months against XIRCUM's every 14 months. XIRCUM's advantage is iOS requirement (12.0 vs 15.4). 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.

Solar ships an update every 2 months, XIRCUM every 14 months. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Solar | XIRCUM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (3 ratings)](https://appshunter.io/ios/app/solar-log-web-enerest-3/id1225564286/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 19.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 14 months |
| Monetization | Free with in-app purchases | — |
| Size | 56 MB | 26 MB |
| Requires iOS | 15.4 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Solar-Log GmbH](https://appshunter.io/developer/373967607) | [Hubert Niewels GmbH](https://appshunter.io/developer/1202867663) |

## What reviewers say

### Solar

[App page](https://appshunter.io/ios/app/solar-log-web-enerest-3/id1225564286)

Monitor and visualize all aspects of your photovoltaic plants. Customize your dashboard with over 45 combinations and receive real-time status updates and news. Secure data transfer ensures your information is protected.

**Highlights:** Customizable pinboard dashboard, Visualization of production and consumption data, Real-time status and news updates, Fullscreen balance chart mode, Encrypted data transfer, Package upgrades for enhanced functionality

**In-app purchases:** none


### XIRCUM

[App page](https://appshunter.io/ios/app/xircum/id1445171606)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Solar free?

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

### Is XIRCUM free?

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

### Do Solar or XIRCUM have ads?

Neither Solar nor XIRCUM shows ads.

### Which is updated more often, Solar or XIRCUM?

Solar ships an update every 2 months, and XIRCUM every 14 months. Most recently, Solar was updated on October 24, 2026 and XIRCUM on October 19, 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.*