# Arm vs SFH

The clearest difference is rating: SFH at 5.0 against Arm's 1.0. Arm's advantage is update cadence (every 6 days vs every 4 months) and review sentiment (50% vs 33%). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SFH holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews complicate that: 50% of Arm's written reviews are positive against 33% of SFH's, so the app with the better star average is not the one people write more warmly about.

Arm ships an update every 6 days, SFH every 4 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Arm | SFH |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/arm-v/id6470135168/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sfh/id6738269907/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | **50.0% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 4 months |
| Monetization | Free | Free |
| Size | 35 MB | 55 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Artem Konovodov](https://appshunter.io/developer/1713038540) | [Shenzhen Chengen Thermovision Technology Co., Ltd](https://appshunter.io/developer/1700843354) |

## What reviewers say

### Arm

[App page](https://appshunter.io/ios/app/arm-v/id6470135168)

Configure, update, diagnose, and view statistics for Arm-V electronic keys used with airsoft replicas. This utility app helps maintain and optimize your airsoft equipment.

**Highlights:** Configure electronic keys, Update firmware, Diagnose issues, View statistics, Manage airsoft replicas

**Features:** macOS Compatibility

**In-app purchases:** none


### SFH

[App page](https://appshunter.io/ios/app/sfh/id6738269907)

This companion app enhances the functionality of SFH thermal imaging devices. It offers real-time thermal monitoring, optimized controls for field use, and efficient data management for analysis and reporting.

**Highlights:** Real-time thermal imaging, Optimized for field work, Screenshot and video recording, Effortless data management, Device performance analytics, Professional-grade monitoring

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

**In-app purchases:** none


## Frequently asked questions

### Is Arm free?

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

### Is SFH free?

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

### Which has better reviews, Arm or SFH?

SFH is rated higher. Arm averages 1.0 out of 5 from 1 ratings, while SFH averages 5.0 from 1 ratings.

### Do Arm or SFH have ads?

Neither Arm nor SFH shows ads.

### Which is updated more often, Arm or SFH?

Arm ships an update every 6 days, and SFH every 4 months. Most recently, Arm was updated on October 24, 2026 and SFH on October 24, 2026.

---

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