# 855 Treeman vs UTL SOLAR SUN +

The clearest difference is update cadence: UTL SOLAR SUN + at every 2 days against 855 Treeman's every 2 weeks. 855 Treeman's advantage is iOS requirement (12.0 vs 15.1). 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.

855 Treeman ships an update every 2 weeks, UTL SOLAR SUN + every 2 days. The most recent releases landed on September 30, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | 855 Treeman | UTL SOLAR SUN + |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 6.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Monetization | — | Free |
| Size | 37 MB | 41 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [855 Treeman](https://appshunter.io/developer/1845792483) | [Fujiyama Power Systems Private Limited](https://appshunter.io/developer/1833855888) |

## What reviewers say

### 855 Treeman

[App page](https://appshunter.io/ios/app/855-treeman/id6753932829)

**Features:** macOS Compatibility

**In-app purchases:** none


### UTL SOLAR SUN +

[App page](https://appshunter.io/ios/app/utl-solar-sun-plus/id6757518540)

Monitor, analyze, and configure solar inverters in real-time. This app offers tools for plant managers, technicians, and system owners to optimize energy production and system health for single sites or complex grids.

**Highlights:** Real-time monitoring, Performance analysis, Inverter configuration, System health checks, Energy production optimization

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

**In-app purchases:** none


## Frequently asked questions

### Is 855 Treeman free?

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

### Is UTL SOLAR SUN + free?

UTL SOLAR SUN + is free to download, with no in-app purchases.

### Do 855 Treeman or UTL SOLAR SUN + have ads?

Neither 855 Treeman nor UTL SOLAR SUN + shows ads.

### Which is updated more often, 855 Treeman or UTL SOLAR SUN +?

855 Treeman ships an update every 2 weeks, and UTL SOLAR SUN + every 2 days. Most recently, 855 Treeman was updated on September 30, 2026 and UTL SOLAR SUN + on October 20, 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.*