# KOSTAL PIKO CI vs Trotec Assistent

The clearest difference is review sentiment: Trotec Assistent at 33% against KOSTAL PIKO CI's 14%. KOSTAL PIKO CI's advantage is update cadence (every 2 months vs every 7 months) and iOS requirement (8.0 vs 14.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

KOSTAL PIKO CI ships an update every 2 months, Trotec Assistent every 7 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | KOSTAL PIKO CI | Trotec Assistent |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 14.3% of reviews | **33.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | Free | Free |
| Size | 30 MB | 216 MB |
| Requires iOS | **8.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [KOSTAL Solar Electric GmbH](https://appshunter.io/developer/961587700) | [Trotec GmbH & Co. KG](https://appshunter.io/developer/1301388797) |

## What reviewers say

### KOSTAL PIKO CI

[App page](https://appshunter.io/ios/app/kostal-piko-ci/id1541448829)

This app allows for the commissioning and configuration of PIKO CI series inverters. It also provides the ability to view real-time performance data of connected devices and update firmware.

**Highlights:** Commission PIKO CI inverters, Configure system-specific functions, View current performance data, Update inverter firmware, Manage network and WLAN settings, Connect Solar Portal

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

**In-app purchases:** none


### Trotec Assistent

[App page](https://appshunter.io/ios/app/trotec-assistent/id1563228039)

Control your Trotec HomeComfort devices remotely via WLAN. Adjust settings like temperature, mode, and timers from anywhere. Compatible with air conditioners and other supported devices.

**Highlights:** Remote control via WLAN, Switch devices on/off, Change operating modes, Adjust target temperature, Set on/off schedules, Configure countdown timer, Activate night mode

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KOSTAL PIKO CI free?

KOSTAL PIKO CI is free to download, with no in-app purchases.

### Is Trotec Assistent free?

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

### Do KOSTAL PIKO CI or Trotec Assistent have ads?

Neither KOSTAL PIKO CI nor Trotec Assistent shows ads.

### Which is updated more often, KOSTAL PIKO CI or Trotec Assistent?

KOSTAL PIKO CI ships an update every 2 months, and Trotec Assistent every 7 months. Most recently, KOSTAL PIKO CI was updated on November 3, 2026 and Trotec Assistent on November 3, 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.*