# Thermometer vs ARMAS

The clearest difference is review sentiment: ARMAS at 100% against Thermometer's 22%. ARMAS also leads on price (Free vs $2.99) and rating (4.3 vs 4.0). Thermometer's advantage is chart position (#42 vs unranked). On ratings volume, ads, in-app purchases and device support there is nothing between them.

ARMAS is free to download; Thermometer costs $2.99 up front. Thermometer sells 1 one-off in-app purchase and ARMAS sells 3 in-app purchases, starting at $2.99 per year. Whichever you choose, the download price is not the number that matters.

ARMAS holds the better App Store score, 4.3 against 4.0. Both are backed by a comparable volume of ratings — 5 and 6 respectively. Written reviews point the same way: 22% of Thermometer's written reviews are positive against 100% of ARMAS's.

Thermometer ships an update every 6 months, ARMAS every 2 months. The most recent releases landed on September 22, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Thermometer | ARMAS |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [4.0 (5 ratings)](https://appshunter.io/ios/app/thermometer-local-temperature/id839999161/reviews) | **[4.3 (6 ratings)](https://appshunter.io/ios/app/armas/id1446097782/reviews)** |
| Number of ratings | 5 | **6** |
| Positive reviews | 22.2% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#42** | — |
| Size | 6 MB | 38 MB |
| Requires iOS | 26.0 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [LionsApp di Nallbati Elton](https://appshunter.io/developer/432915499) | [Space Environment Technologies, LLC.](https://appshunter.io/developer/1446097781) |

## What reviewers say

### Thermometer

[App page](https://appshunter.io/ios/app/thermometer-local-temperature/id839999161)

**Currently charting:** #42 Top Paid · Weather (US App Store)

This app displays real-time outdoor temperature and local weather conditions for your current location or any saved location. It provides hourly and daily forecasts, helping you stay prepared for the weather.

**Highlights:** Outdoor temperature measurement, Feels like temperature, Current weather conditions, Hourly and daily forecasts (Pro), Unlimited favorite locations, Temperature in °C, °F, and K, Intuitive graphics

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Thermometer Pro | $1.99 | one-time |


### 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 |


## Frequently asked questions

### Is Thermometer free?

Thermometer costs $2.99, and also offers in-app purchases.

### Is ARMAS free?

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

### Which has better reviews, Thermometer or ARMAS?

ARMAS is rated higher. Thermometer averages 4.0 out of 5 from 5 ratings, while ARMAS averages 4.3 from 6 ratings.

### Do Thermometer or ARMAS have ads?

Neither Thermometer nor ARMAS shows ads.

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

Thermometer ships an update every 6 months, and ARMAS every 2 months. Most recently, Thermometer was updated on September 22, 2026 and ARMAS on September 28, 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.*