# ProfiSignal 20 vs HEAD B2U

The clearest difference is update cadence: ProfiSignal 20 at every 4 months against HEAD B2U's every 10 months. HEAD B2U's advantage is iOS requirement (15.0 vs 17.0). 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.

ProfiSignal 20 ships an update every 4 months, HEAD B2U every 10 months. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ProfiSignal 20 | HEAD B2U |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/head-b2u/id1529128839/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 10 months |
| Monetization | — | Free |
| Size | 408 MB | 33 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Delphin Technology AG](https://appshunter.io/developer/804641016) | [HEAD acoustics GmbH](https://appshunter.io/developer/1529128841) |

## What reviewers say

### ProfiSignal 20

[App page](https://appshunter.io/ios/app/profisignal-20/id1494152331)

**In-app purchases:** none


### HEAD B2U

[App page](https://appshunter.io/ios/app/head-b2u/id1529128839)

Explore immersive binaural audio experiences on your iOS device. Connect specialized hardware to unlock high-fidelity sound recordings and discover a new dimension of audio.

**Highlights:** Binaural audio recording, USB host port connection, Compatible with B2U hardware, Compatible with SQope hardware, iOS device support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ProfiSignal 20 free?

ProfiSignal 20 is free to download, with no in-app purchases.

### Is HEAD B2U free?

HEAD B2U is free to download, with no in-app purchases.

### Do ProfiSignal 20 or HEAD B2U have ads?

Neither ProfiSignal 20 nor HEAD B2U shows ads.

### Which is updated more often, ProfiSignal 20 or HEAD B2U?

ProfiSignal 20 ships an update every 4 months, and HEAD B2U every 10 months. Most recently, ProfiSignal 20 was updated on October 19, 2026 and HEAD B2U 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.*