# ownCloud Online vs Erebus Solar

The clearest difference is rating: ownCloud Online at 5.0 against Erebus Solar's 3.7. ownCloud Online also leads on device support (3 vs 1) and iOS requirement (15.4 vs 17.0). Erebus Solar's advantage is update cadence (every 2 weeks vs every 2 months). On price, review sentiment, ratings volume and ads there is nothing between them.

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

ownCloud Online holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 5 and 3 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

ownCloud Online ships an update every 2 months, Erebus Solar every 2 weeks. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ownCloud Online | Erebus Solar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/owncloud-online/id1436996124/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/erebus-solar/id6790828521/reviews) |
| Number of ratings | **5** | 3 |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 69 MB | 19 MB |
| Requires iOS | **15.4** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ownCloud GmbH](https://appshunter.io/developer/1359583807) | [Todd Evans](https://appshunter.io/developer/6790828523) |

## What reviewers say

### ownCloud Online

[App page](https://appshunter.io/ios/app/owncloud-online/id1436996124)

Securely store and share your data with a private cloud solution. Enhance team collaboration and boost productivity with state-of-the-art data handling and end-to-end encryption, all hosted in Germany for maximum privacy.

**Highlights:** Secure cloud storage, Team collaboration, End-to-end encryption, Data privacy, Productivity enhancement, Open-source codebase

**Features:** macOS Compatibility

**In-app purchases:** none


### Erebus Solar

[App page](https://appshunter.io/ios/app/erebus-solar/id6790828521)

This app helps solar professionals measure on-site shade using their phone's sensors. It generates horizon files compatible with leading PV design software, aiding in accurate solar production estimates.

**Highlights:** AR sun path visualization, Automatic sky capture, Sky Editor for obstruction tracing, Annual solar access analysis, PDF shade report export, Horizon file generation for design tools, Project organization by site

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

**In-app purchases:** none


## Frequently asked questions

### Is ownCloud Online free?

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

### Is Erebus Solar free?

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

### Which has better reviews, ownCloud Online or Erebus Solar?

ownCloud Online is rated higher. ownCloud Online averages 5.0 out of 5 from 5 ratings, while Erebus Solar averages 3.7 from 3 ratings.

### Do ownCloud Online or Erebus Solar have ads?

Neither ownCloud Online nor Erebus Solar shows ads.

### Which is updated more often, ownCloud Online or Erebus Solar?

ownCloud Online ships an update every 2 months, and Erebus Solar every 2 weeks. Most recently, ownCloud Online was updated on November 2, 2026 and Erebus Solar on October 31, 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.*