# HDP-D90

> Mobile app for tuning HDP-D90 vehicle audio DSP processors via Bluetooth. (iPhone/iPad app by Alpine China.)

- Source: https://appshunter.io/ios/app/hdp-d90/id1627202308 (this page in markdown: same URL + `.md`)
- Developer: [Alpine China](https://appshunter.io/developer/1182300151)
- Category: Utilities
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 11.0 · 39 MB
- Languages: American English, Chinese (Simplified, China), Chinese (Traditional, Taiwan)
- Released: 2022-06-14
- Data updated: 2026-06-13
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/hdp-d90/id1627202308/reviews.md

## What is HDP?

This is a mobile phone tuning APP for high-quality audio processor, which is used for the vehicle DSP product HDP-D90. Connect with the device via Bluetooth, support both Chinese and English.

## Key features

- Bluetooth connectivity
- Audio processor tuning
- Vehicle DSP control
- Dual language support (Chinese/English)


## Frequently asked questions about HDP

### What is HDP-D90 used for?

HDP-D90 is a mobile phone tuning app designed for high-quality audio processing, specifically for the HDP-D90 vehicle DSP product. It allows users to adjust and optimize their car's audio system.

### How does HDP-D90 connect to the audio processor?

HDP-D90 connects to the HDP-D90 vehicle DSP product wirelessly via Bluetooth technology. This enables seamless control and tuning of audio settings.

### What languages does HDP-D90 support?

HDP-D90 supports both Chinese and English languages, making it accessible to a wider range of users who wish to tune their vehicle's audio.

### Is HDP-D90 compatible with my device?

HDP-D90 is compatible with iPhones and iPods. It is designed for mobile phone tuning of the HDP-D90 vehicle DSP product.

### When was HDP-D90 last updated?

The latest version of HDP-D90 was updated on October 1, 2022. The app was initially released on June 14, 2022.

### What is the age rating for HDP-D90?

HDP-D90 has an age rating of 4+. This indicates it is suitable for users of all ages.

### Who developed HDP-D90?

HDP-D90 was developed by Alpine China. They are the creators of this mobile tuning application for their vehicle DSP product.

### How do I get HDP-D90?

HDP-D90 is available for free. You can download it for your iPhone or iPod to tune your HDP-D90 vehicle DSP product.

## Version history (last 4 releases)

### 1.0.3 — 2022-10-01

1. Optimize bass phase.

2. Fix known bugs.

### 1.0.2 — 2022-08-30

1. Fix the popover problem.

2. Optimize the shutdown delay display.

### 1.0.1 — 2022-07-06

1. Optimize the status bar color.

2. Optimize iOS15 Bluetooth status management.

### 1.0.0 — 2022-06-14

No release notes.

## Apps similar to HDP

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Alpine DVR](https://appshunter.io/ios/app/alpine-dvr/id1605444043) | — | Free | Utilities |
| [XL-RGB1](https://appshunter.io/ios/app/xl-rgb1/id6444302967) | 5.0 (3) | Free | Utilities |
| [FEM DSP](https://appshunter.io/ios/app/fem-dsp/id1570255777) | — | Free | Utilities |
| [Tweak n Tune](https://appshunter.io/ios/app/tweak-n-tune/id1556961714) | — | Free | Utilities |
| [DSP 1.8 RC](https://appshunter.io/ios/app/dsp-18-rc/id1284821199) | 1.0 (1) | Free | Utilities |
| [MeasureMate](https://appshunter.io/ios/app/measuremate/id6449699394) | — | Free | Utilities |

## More apps by Alpine China

- [PXE-K100/PXE-T200](https://appshunter.io/ios/app/pxe-k100pxe-t200/id1402362910)
- [ALPINE DSP SW](https://appshunter.io/ios/app/alpine-dsp-sw/id1444709481)
- [PXE-X09](https://appshunter.io/ios/app/pxe-x09/id1457289427)
- [PXE-R600](https://appshunter.io/ios/app/pxe-r600/id1501307628)
- [PXE-0850X](https://appshunter.io/ios/app/pxe-0850x/id1507116408)
- [PXE-R500](https://appshunter.io/ios/app/pxe-r500/id1556774816)

All apps by Alpine China: https://appshunter.io/developer/1182300151

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-13.*