# FieldFox vs R&S MobileView

The clearest difference is rating: R&S MobileView at 5.0 against FieldFox's 4.0. FieldFox's advantage is ratings volume (4 vs 1) and iOS requirement (12.0 vs 14.0). On price, update cadence, 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.

R&S MobileView holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

FieldFox ships an update every 12 months, R&S MobileView every 15 months. The most recent releases landed on October 18, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | FieldFox | R&S MobileView |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/fieldfox/id635077328/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/r-and-s-mobileview/id1186696896/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 12 months** | Every 15 months |
| Monetization | Free | Free |
| Size | 27 MB | 112 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Keysight Technologies, Inc.](https://appshunter.io/developer/903911491) | [Rohde & Schwarz GmbH & Co. KG](https://appshunter.io/developer/364229795) |

## What reviewers say

### FieldFox

[App page](https://appshunter.io/ios/app/fieldfox/id635077328)

This application allows for remote viewing and control of Keysight FieldFox handheld analyzers. Mirror the instrument's display on your iOS device and access product documentation. Full remote control requires a specific instrument option.

**Highlights:** Remote viewing of FieldFox instruments, Full remote control with option 030, Instrument display mirroring, Access to product manuals and brochures, View and share documentation, Portrait and landscape orientation support

**Features:** macOS Compatibility

**In-app purchases:** none


### R&S MobileView

[App page](https://appshunter.io/ios/app/r-and-s-mobileview/id1186696896)

Remotely monitor and control Rohde & Schwarz instruments from your mobile device. Easily transfer files between your instrument and phone or tablet. Connect globally via IP or locally via network scan.

**Highlights:** Remote instrument monitoring, Instrument control, File transfer utility, IP address connection, Local network scanning, Instrument-specific remote control environment

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

**In-app purchases:** none


## Frequently asked questions

### Is FieldFox free?

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

### Is R&S MobileView free?

R&S MobileView is free to download, with no in-app purchases.

### Which has better reviews, FieldFox or R&S MobileView?

R&S MobileView is rated higher. FieldFox averages 4.0 out of 5 from 4 ratings, while R&S MobileView averages 5.0 from 1 ratings.

### Do FieldFox or R&S MobileView have ads?

Neither FieldFox nor R&S MobileView shows ads.

### Which is updated more often, FieldFox or R&S MobileView?

FieldFox ships an update every 12 months, and R&S MobileView every 15 months. Most recently, FieldFox was updated on October 18, 2026 and R&S MobileView on October 29, 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.*