# ARMAS vs Barometria

The clearest difference is in-app purchases: Barometria at none against ARMAS's 3. ARMAS's advantage is update cadence (every 2 months vs every 5 months) and iOS requirement (14.0 vs 18.2). On price, ads and device support there is nothing between them.

Both are free to download. ARMAS sells 3 in-app purchases, starting at $2.99 per year. Barometria asks for nothing beyond the download.

ARMAS ships an update every 2 months, Barometria every 5 months. The most recent releases landed on August 28, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | ARMAS | Barometria |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (6 ratings)](https://appshunter.io/ios/app/armas/id1446097782/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 38 MB | 9 MB |
| Requires iOS | **14.0** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Space Environment Technologies, LLC.](https://appshunter.io/developer/1446097781) | [Martin Kiefer](https://appshunter.io/developer/1631300168) |

## What reviewers say

### ARMAS

[App page](https://appshunter.io/ios/app/armas/id1446097782)

Real-time radiation monitoring for aviation and space weather awareness. Pairs with hardware detectors or provides data from global systems for pilots and travelers.

**Highlights:** Real-time radiation monitoring, Space weather awareness, Pairs with ARMAS Flight Modules, Detects various radiation types, Global airspace coverage, Data from ground and space systems

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premier | $2.99 | per year |
| Professional | $2.99 | per year |
| Member | $2.99 | one-time |


### Barometria

[App page](https://appshunter.io/ios/app/barometria/id6746201219)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ARMAS free?

ARMAS is free to download, with in-app purchases available.

### Is Barometria free?

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

### Do ARMAS or Barometria have ads?

Neither ARMAS nor Barometria shows ads.

### Which is updated more often, ARMAS or Barometria?

ARMAS ships an update every 2 months, and Barometria every 5 months. Most recently, ARMAS was updated on August 28, 2026 and Barometria on September 17, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*