# FMO 设备控制台 vs 户外海拔计

The clearest difference is price: 户外海拔计 at Free against FMO 设备控制台's $3.99. 户外海拔计 also leads on in-app purchases (none vs 1) and update cadence (every 2 days vs every 5 days). FMO 设备控制台's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On ads there is nothing between them.

户外海拔计 is free to download; FMO 设备控制台 costs $3.99 up front. FMO 设备控制台 sells 1 one-off in-app purchase. 户外海拔计 asks for nothing beyond the download.

FMO 设备控制台 ships an update every 5 days, 户外海拔计 every 2 days. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | FMO 设备控制台 | 户外海拔计 |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fmo/id6773165694/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 2 days** |
| Monetization | Paid | — |
| Size | 17 MB | 92 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mobiliarbus](https://appshunter.io/developer/1474061315) | [莎莎 戴](https://appshunter.io/developer/6801681541) |

## What reviewers say

### FMO 设备控制台

[App page](https://appshunter.io/ios/app/fmo/id6773165694)

This utility app allows users to connect to and control FMO Radio devices from their iOS device. Monitor relay and radio status, view communication events, and stream live audio. It also provides APRS information and allows for saving favorite stations.

**Highlights:** Connect to FMO Radio devices, View relay and radio status, Monitor communication events, Stream live audio with background playback, View APRS grid, distance, and bearing, Favorite stations and connection history, Local demo mode

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SSTV Image Receiver | $1.99 | one-time |


### 户外海拔计

[App page](https://appshunter.io/ios/app/id6809466247)

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

**In-app purchases:** none


## Frequently asked questions

### Is FMO 设备控制台 free?

FMO 设备控制台 costs $3.99, and also offers in-app purchases.

### Is 户外海拔计 free?

户外海拔计 is free to download, with no in-app purchases.

### Do FMO 设备控制台 or 户外海拔计 have ads?

Neither FMO 设备控制台 nor 户外海拔计 shows ads.

### Which is updated more often, FMO 设备控制台 or 户外海拔计?

FMO 设备控制台 ships an update every 5 days, and 户外海拔计 every 2 days. Most recently, FMO 设备控制台 was updated on October 7, 2026 and 户外海拔计 on October 9, 2026.

---

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