# FieldFox vs SigTrax

The clearest difference is price: FieldFox at Free against SigTrax's $2.99. FieldFox also leads on review sentiment (100% vs 60%) and in-app purchases (none vs 2). SigTrax's advantage is update cadence (every 3 months vs every 12 months) and chart position (#197 vs unranked). On ratings volume, ads and device support there is nothing between them.

FieldFox is free to download; SigTrax costs $2.99 up front. SigTrax sells 2 one-off in-app purchases. FieldFox asks for nothing beyond the download.

FieldFox holds the better App Store score, 4.0 against 3.6. Both are backed by a comparable volume of ratings — 4 and 8 respectively. Written reviews point the same way: 100% of FieldFox's written reviews are positive against 60% of SigTrax's.

FieldFox ships an update every 12 months, SigTrax every 3 months. The most recent releases landed on October 8, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | FieldFox | SigTrax |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/fieldfox/id635077328/reviews)** | [3.6 (8 ratings)](https://appshunter.io/ios/app/sigtrax/id714920367/reviews) |
| Number of ratings | 4 | **8** |
| Positive reviews | **100.0% of reviews** | 60.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 3 months** |
| Monetization | **Free** | Paid |
| Best chart rank | — | **#197** |
| Size | 27 MB | 5 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Keysight Technologies, Inc.](https://appshunter.io/developer/903911491) | [Amcept, LLC](https://appshunter.io/developer/714920370) |

## 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


### SigTrax

[App page](https://appshunter.io/ios/app/sigtrax/id714920367)

**Currently charting:** #197 Top Paid · Productivity (US App Store)

This app helps users locate signal origins by plotting bearings and identifying intersection points. It simplifies the tracking process with mobile device capabilities, offering features like automatic Crosspoint calculation and driving directions to identified locations.

**Highlights:** Plot bearings and determine Crosspoints, High precision GPS locating, Handheld mapping, Automatic Crosspoint management, Driving maps with voice routing, Archive and retrieve bearing collections

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SigShare | $1.99 | one-time |
| DataTrax | $5.99 | one-time |


## Frequently asked questions

### Is FieldFox free?

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

### Is SigTrax free?

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

### Which has better reviews, FieldFox or SigTrax?

FieldFox is rated higher. FieldFox averages 4.0 out of 5 from 4 ratings, while SigTrax averages 3.6 from 8 ratings.

### Do FieldFox or SigTrax have ads?

Neither FieldFox nor SigTrax shows ads.

### Which is updated more often, FieldFox or SigTrax?

FieldFox ships an update every 12 months, and SigTrax every 3 months. Most recently, FieldFox was updated on October 8, 2026 and SigTrax on October 6, 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.*