# Sirio2 vs Universal RC

The clearest difference is update cadence: Universal RC at every 4 months against Sirio2's every 16 months. Universal RC also leads on iOS requirement (9.0 vs 12.4). 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.

Sirio2 ships an update every 16 months, Universal RC every 4 months. The most recent releases landed on October 2, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Sirio2 | Universal RC |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 4 months** |
| Size | 106 MB | 75 MB |
| Requires iOS | 12.4 | **9.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NewPhone GmbH](https://appshunter.io/developer/1003721659) | [Niko n.v.](https://appshunter.io/developer/441504490) |

## What reviewers say

### Sirio2

[App page](https://appshunter.io/ios/app/sirio2/id1003721660)

**Features:** macOS Compatibility

**In-app purchases:** none


### Universal RC

[App page](https://appshunter.io/ios/app/universal-rc/id1031165717)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sirio2 free?

Sirio2 is free to download, with no in-app purchases.

### Is Universal RC free?

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

### Do Sirio2 or Universal RC have ads?

Neither Sirio2 nor Universal RC shows ads.

### Which is updated more often, Sirio2 or Universal RC?

Sirio2 ships an update every 16 months, and Universal RC every 4 months. Most recently, Sirio2 was updated on October 2, 2026 and Universal RC on September 30, 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.*