# SolarPotenzialAR vs HTW Berlin

The clearest difference is update cadence: HTW Berlin at every 2 weeks against SolarPotenzialAR's every 3 months. SolarPotenzialAR's advantage is iOS requirement (13.0 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.

SolarPotenzialAR ships an update every 3 months, HTW Berlin every 2 weeks. The most recent releases landed on October 10, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | SolarPotenzialAR | HTW Berlin |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 147 MB | 104 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Frank Fuchs-Kittowski](https://appshunter.io/developer/765095623) | [UniNow GmbH](https://appshunter.io/developer/1099302123) |

## What reviewers say

### SolarPotenzialAR

[App page](https://appshunter.io/ios/app/solarpotenzialar/id6738649059)

**Features:** macOS Compatibility

**In-app purchases:** none


### HTW Berlin

[App page](https://appshunter.io/ios/app/htw-berlin/id6758776446)

This app helps students manage their academic life on campus. It provides tools for scheduling, grade tracking, library book management, and university email access, ensuring you stay organized and informed throughout your studies.

**Highlights:** Academic calendar and scheduling, Grade point average calculation, Library book loan tracking and renewal, University email access, Push notifications for grades

**Features:** macOS Compatibility, Apple Wallet, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SolarPotenzialAR free?

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

### Is HTW Berlin free?

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

### Do SolarPotenzialAR or HTW Berlin have ads?

Neither SolarPotenzialAR nor HTW Berlin shows ads.

### Which is updated more often, SolarPotenzialAR or HTW Berlin?

SolarPotenzialAR ships an update every 3 months, and HTW Berlin every 2 weeks. Most recently, SolarPotenzialAR was updated on October 10, 2026 and HTW Berlin on October 25, 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.*