# RMS PSAA vs BlueTag Mobile App

The clearest difference is update cadence: BlueTag Mobile App at monthly against RMS PSAA's every 2 months. RMS PSAA's advantage is 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.

RMS PSAA ships an update every 2 months, BlueTag Mobile App monthly. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | RMS PSAA | BlueTag Mobile App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Size | 12 MB | 96 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NAVCON ADVANCED SYSTEMS LLC](https://appshunter.io/developer/1308787067) | [Kennet Nilsen](https://appshunter.io/developer/1677989388) |

## What reviewers say

### RMS PSAA

[App page](https://appshunter.io/ios/app/rms-psaa/id1541129524)

**Features:** macOS Compatibility

**In-app purchases:** none


### BlueTag Mobile App

[App page](https://appshunter.io/ios/app/bluetag-mobile-app/id6446454710)

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

**In-app purchases:** none


## Frequently asked questions

### Is RMS PSAA free?

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

### Is BlueTag Mobile App free?

BlueTag Mobile App is free to download, with no in-app purchases.

### Do RMS PSAA or BlueTag Mobile App have ads?

Neither RMS PSAA nor BlueTag Mobile App shows ads.

### Which is updated more often, RMS PSAA or BlueTag Mobile App?

RMS PSAA ships an update every 2 months, and BlueTag Mobile App monthly. Most recently, RMS PSAA was updated on October 25, 2026 and BlueTag Mobile App on October 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.*