# HARMONY DSP vs Blaupunkt 1D DSP

HARMONY DSP and Blaupunkt 1D DSP are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

HARMONY DSP ships an update every 19 months, Blaupunkt 1D DSP every 23 months. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | HARMONY DSP | Blaupunkt 1D DSP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 19 months** | Every 23 months |
| Size | 3 MB | 9 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [APEX Italy](https://appshunter.io/developer/1446565085) | [Blapac Sdn Bhd](https://appshunter.io/developer/1267753574) |

## What reviewers say

### HARMONY DSP

[App page](https://appshunter.io/ios/app/harmony-dsp/id1638244924)

**Features:** macOS Compatibility

**In-app purchases:** none


### Blaupunkt 1D DSP

[App page](https://appshunter.io/ios/app/blaupunkt-1d-dsp/id6483253072)

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

**In-app purchases:** none


## Frequently asked questions

### Is HARMONY DSP free?

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

### Is Blaupunkt 1D DSP free?

Blaupunkt 1D DSP is free to download, with no in-app purchases.

### Do HARMONY DSP or Blaupunkt 1D DSP have ads?

Neither HARMONY DSP nor Blaupunkt 1D DSP shows ads.

### Which is updated more often, HARMONY DSP or Blaupunkt 1D DSP?

HARMONY DSP ships an update every 19 months, and Blaupunkt 1D DSP every 23 months. Most recently, HARMONY DSP was updated on October 27, 2026 and Blaupunkt 1D DSP on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*