# Fundació UdG vs Solaris

The clearest difference is update cadence: Solaris at every 2 weeks against Fundació UdG's every 2 months. Solaris also leads on iOS requirement (13.0 vs 15.0). 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.

Fundació UdG ships an update every 2 months, Solaris every 2 weeks. The most recent releases landed on October 17, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Fundació UdG | Solaris |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 76 MB | 22 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [SEDUNI TORCAR SL](https://appshunter.io/developer/1450163694) | [OneCareAI](https://appshunter.io/developer/1814806684) |

## What reviewers say

### Fundació UdG

[App page](https://appshunter.io/ios/app/fundacio-udg/id6476604982)

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

**In-app purchases:** none


### Solaris

[App page](https://appshunter.io/ios/app/solaris/id6777918414)

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

**In-app purchases:** none


## Frequently asked questions

### Is Fundació UdG free?

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

### Is Solaris free?

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

### Do Fundació UdG or Solaris have ads?

Neither Fundació UdG nor Solaris shows ads.

### Which is updated more often, Fundació UdG or Solaris?

Fundació UdG ships an update every 2 months, and Solaris every 2 weeks. Most recently, Fundació UdG was updated on October 17, 2026 and Solaris on October 14, 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.*