# Audiologist vs Responder Trax

The clearest difference is update cadence: Responder Trax at every 4 weeks against Audiologist's every 3 months. Audiologist's advantage is iOS requirement (14.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

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

Audiologist ships an update every 3 months, Responder Trax every 4 weeks. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Audiologist | Responder Trax |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/responder-trax/id1494911507/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 weeks** |
| Monetization | — | Free |
| Size | 10 MB | 264 MB |
| Requires iOS | **14.0** | 17.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [欧仕达听力科技(厦门)有限公司](https://appshunter.io/developer/1405345564) | [NovoTrax](https://appshunter.io/developer/1494911506) |

## What reviewers say

### Audiologist

[App page](https://appshunter.io/ios/app/audiologist/id1405345565)

**In-app purchases:** none


### Responder Trax

[App page](https://appshunter.io/ios/app/responder-trax/id1494911507)

This app facilitates secure communication, dispatching, and assignment tracking for public safety personnel. It enables real-time location monitoring of staff and vehicles, asset management, and digital evidence documentation. Users can also issue citations, scan credentials, and manage inmate bookings.

**Highlights:** Real-time location monitoring, Secure messaging and file sharing, Dispatch and work assignment management, Vehicle and asset tracking, Digital evidence documentation, Citation issuance and scanning, Inmate booking and mugshots

**In-app purchases:** none


## Frequently asked questions

### Is Audiologist free?

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

### Is Responder Trax free?

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

### Do Audiologist or Responder Trax have ads?

Neither Audiologist nor Responder Trax shows ads.

### Which is updated more often, Audiologist or Responder Trax?

Audiologist ships an update every 3 months, and Responder Trax every 4 weeks. Most recently, Audiologist was updated on October 29, 2026 and Responder Trax on October 24, 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.*