PA-4.8

Rainbow Audio GmbH Utilities iPhoneiPadiPod touch

PA-4.8 is a free Utilities app for iPhone and iPad by Rainbow Audio GmbH. Requires iOS 15.6. Updated September 16, 2025.

Price: Free; on the App Store
Size: 5 MB; Age 4+
Updated: Sep 16; 2025 · v1.0.2

Download on theApp Store See alternatives

Screenshots

About PA-4.8

The app is designed for use with RAINBOW CAR AUDIO dsp PA-4.8 This app gives you tools needed to fine tune virtually every aspect of your car audio system. Whether you ara a professional installer or an obsessive audiophile, this app allows you to realize the true potential of DSP tuning tools. Features: 31 bands EQ parametric / grahpic equalization per channel. Phase correction. Crossover type, frequency and slope adjustments. Independent input and output level controls.Time Delay. Input summing and linking. 6 customizable presets.

What’s new

Version 1.0.2 · Updated September 16, 2025

Optimize the adaptation of EQ interface

App privacy

The developer, Rainbow Audio GmbH, reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

App details

PA-4.8 is a free Utilities app for iPhone, iPad and iPod touch, developed by Rainbow Audio GmbH. It requires iOS 15.6 or later, is 5 MB to download and is available in 2 languages. It was first released on August 14, 2025 and last updated on September 16, 2025.

Category: Utilities
Price: Free
Version: 1.0.2
Size: 5 MB
Requires: iOS 15.6 or later
Compatibility: iPhone, iPad, iPod touch
Languages: English, Chinese
Age rating: 4+
Released: August 14, 2025
Last updated: September 16, 2025
Developer: Rainbow Audio GmbH

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Alternatives to PA-4.8

Looking for apps like PA-4.8? Here are 6 similar apps on the App Store. The highest rated is Screen Capture & Stream Live (5.0/5), and 5 of the 6 are free to download.

PA-4.8 vs. alternatives
App	Rating	Price	Last updated	Compare
PA-4.8	–	Free	September 16, 2025
Screen Capture & Stream Live	5.0 / 5 (2)	Free	Aug 11, 2026	Compare
dB Pulse: Decibel Meter	–	Free	Sep 4, 2026	Compare
VIBE DSP	–	Free	Jan 30, 2026	Compare
Radio Code for Renault Stereo	4.9 / 5 (8)	1.99 USD	Dec 11, 2025	Compare
Car Starry Sky	1.0 / 5 (1)	Free	Dec 12, 2025	Compare
ScanSmart: QR Code Scanner	–	Free	Oct 17, 2026	Compare

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