# DEKRA TACS4 vs Speaker Discover

The clearest difference is price: DEKRA TACS4 at Free against Speaker Discover's $2.99. DEKRA TACS4 also leads on iOS requirement (11.0 vs 13.0). Speaker Discover's advantage is device support (4 vs 2). On update cadence, ads and in-app purchases there is nothing between them.

DEKRA TACS4 is free to download; Speaker Discover costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

DEKRA TACS4 ships an update every 5 weeks, Speaker Discover every 2 months. The most recent releases landed on October 26, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | DEKRA TACS4 | Speaker Discover |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | — | **[1.0 (3 ratings)](https://appshunter.io/ios/app/speaker-discover/id975200847/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | — | Paid |
| Size | 30 MB | 6 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple TV** |
| Age rating | 4+ | 4+ |
| Developer | [AT4 wireless S.A.](https://appshunter.io/developer/675014301) | [Csaba Iranyi](https://appshunter.io/developer/814994046) |

## What reviewers say

### DEKRA TACS4

[App page](https://appshunter.io/ios/app/dekra-tacs4-mobile/id780499424)

**Features:** macOS Compatibility

**In-app purchases:** none


### Speaker Discover

[App page](https://appshunter.io/ios/app/speaker-discover/id975200847)

This utility helps you discover detailed information about your AirPlay wireless speakers. It reveals firmware versions, supported protocols, audio formats, Wi-Fi capabilities, and physical connectors. Gain comprehensive insights into your speaker devices.

**Highlights:** Detect AirPlay supported wireless speakers, Show speaker model, version, and firmware, Display supported audio formats and quality, Reveal Wi-Fi capabilities and standards, Identify physical connectors, Show host IP, MAC address, and Bonjour info

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

**In-app purchases:** none


## Frequently asked questions

### Is DEKRA TACS4 free?

DEKRA TACS4 is free to download, with no in-app purchases.

### Is Speaker Discover free?

Speaker Discover costs $2.99, with no in-app purchases.

### Do DEKRA TACS4 or Speaker Discover have ads?

Neither DEKRA TACS4 nor Speaker Discover shows ads.

### Which is updated more often, DEKRA TACS4 or Speaker Discover?

DEKRA TACS4 ships an update every 5 weeks, and Speaker Discover every 2 months. Most recently, DEKRA TACS4 was updated on October 26, 2026 and Speaker Discover on November 1, 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.*