# RielGO vs Primus

The clearest difference is update cadence: Primus at every 5 months against RielGO's every 11 months. RielGO's advantage is iOS requirement (12.0 vs 14.0). 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.

RielGO ships an update every 11 months, Primus every 5 months. The most recent releases landed on September 29, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | RielGO | Primus |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 5 months** |
| Size | 92 MB | 118 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Uladzislau Yukhovich](https://appshunter.io/developer/1710967741) | [QRTag sp. z o. o.](https://appshunter.io/developer/1167042832) |

## What reviewers say

### RielGO

[App page](https://appshunter.io/ios/app/rielgo/id6468935373)

**In-app purchases:** none


### Primus

[App page](https://appshunter.io/ios/app/primus/id6737190117)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RielGO free?

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

### Is Primus free?

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

### Do RielGO or Primus have ads?

Neither RielGO nor Primus shows ads.

### Which is updated more often, RielGO or Primus?

RielGO ships an update every 11 months, and Primus every 5 months. Most recently, RielGO was updated on September 29, 2026 and Primus on October 6, 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.*