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Top 11 Audio Processing SDKs Used in iOS Apps on the Apple App Store
Last update: 21 Feb 2025 CET
App Store

Top 11 Audio Processing SDKs Used in iOS Apps on the Apple App Store

We at 42matters have identified the 11 most popular Audio Processing SDKs leveraged by iOS apps available on the iOS app market.

Audio Processing SDKs enable apps to perform a variety of audio processing tasks, such as audio playback, recording, editing, mixing, signal processing, and audio synthesis. These SDKs typically facilitate audio enhancement, noise reduction, echo cancellation, voice recognition, and other advanced audio processing techniques.

This list is based on our analysis of the millions of mobile applications – and the 2,300+ SDKs they use – that constitute the vast inventory of the Apple App Store. The accompanying data provides readers with a glimpse into the rich mobile application insights generated by the 42matters technology. This data is also available via our APIs, file dumps, Explorer, and SDK Explorer.

The intended purpose of this article is to assist app builders in their search for the perfect Audio Processing SDK to leverage in their app, as well as to give SDK developers insight into their biggest competitors and potential customers. This data collected by our technology may also serve as a useful tool for folks researching the wider mobile app market.

The 11 most widely-integrated audio processing SDKs:

1st

JSQSystemSoundPlayer

Check “JSQSystemSoundPlayer” SDK Insights

Among all apps utilizing audio processing SDKs, 26.03% have integrated JSQSystemSoundPlayer. This accounts for 8.51% of app downloads within the audio processing SDK category.

The JSQSystemSoundPlayer SDK is a light-weight component to play sound effects in your app. It is a fancy Obj-C wrapper for Cocoa System Sound Services, for iOS and OS X.

Total Apps
4.65k
App Store
App Share
26.03%
App Store
Apps
4.61k
Games
38
Total Downloads
474.39m
App Store
Download Share
8.51%
App Store
App Downloads
410.72m
Game Downloads
63.67m

Use the 42matters SDK Explorer to find all apps that use JSQSystemSoundPlayer.

2nd

EZAudio

Check “EZAudio” SDK Insights

Among all apps utilizing audio processing SDKs, 23.44% have integrated EZAudio. This accounts for 22.49% of app downloads within the audio processing SDK category.

EZAudio offers six audio components and two interface components to allow you to immediately record, play, and visualize audio data. This SDK has been deprecated.

Total Apps
4.19k
App Store
App Share
23.44%
App Store
Apps
4.17k
Games
18
Total Downloads
1.25b
App Store
Download Share
22.49%
App Store
App Downloads
1.25b
Game Downloads
6.51m

Use the 42matters SDK Explorer to find all apps that use EZAudio.

3rd

AudioStreamer

Check “AudioStreamer” SDK Insights

Among all apps utilizing audio processing SDKs, 15.42% have integrated AudioStreamer. This accounts for 11.84% of app downloads within the audio processing SDK category.

AudioStreamer is a streaming audio player SDK for Mac OSX and iPhone.

Total Apps
2.75k
App Store
App Share
15.42%
App Store
Apps
2.74k
Games
13
Total Downloads
660.29m
App Store
Download Share
11.84%
App Store
App Downloads
658.93m
Game Downloads
1.36m

Use the 42matters SDK Explorer to find all apps that use AudioStreamer.

4th

ObjectAL

Check “ObjectAL” SDK Insights

Among all apps utilizing audio processing SDKs, 11.78% have integrated ObjectAL. This accounts for 11.29% of app downloads within the audio processing SDK category.

The ObjectAL SDK for iPhone and Mac is designed to be a simpler, more intuitive interface to OpenAL and AVAudioPlayer.

Total Apps
2.10k
App Store
App Share
11.78%
App Store
Apps
495
Games
1.61k
Total Downloads
629.55m
App Store
Download Share
11.29%
App Store
App Downloads
88.15m
Game Downloads
541.39m

Use the 42matters SDK Explorer to find all apps that use ObjectAL.

5th

StreamingKit

Check “StreamingKit” SDK Insights

Among all apps utilizing audio processing SDKs, 9.30% have integrated StreamingKit. This accounts for 17.81% of app downloads within the audio processing SDK category.

StreamingKit (formally Audjustable) is an audio playback and streaming library SDK for iOS and Mac OSX. StreamingKit uses CoreAudio to decompress and playback audio (using hardware or software codecs) whilst providing a clean and simple object-oriented API.

Total Apps
1.66k
App Store
App Share
9.30%
App Store
Apps
1.65k
Games
7
Total Downloads
993.15m
App Store
Download Share
17.81%
App Store
App Downloads
992.43m
Game Downloads
718.73k

Use the 42matters SDK Explorer to find all apps that use StreamingKit.

6th

Nuance

Check “Nuance” SDK Insights

Among all apps utilizing audio processing SDKs, 7.26% have integrated Nuance. This accounts for 1.11% of app downloads within the audio processing SDK category.

Total Apps
1.30k
App Store
App Share
7.26%
App Store
Apps
1.03k
Games
267
Total Downloads
62.16m
App Store
Download Share
1.11%
App Store
App Downloads
32.60m
Game Downloads
29.55m

Use the 42matters SDK Explorer to find all apps that use Nuance.

7th

DOUAudioStreamer

Check “DOUAudioStreamer” SDK Insights

Among all apps utilizing audio processing SDKs, 4.14% have integrated DOUAudioStreamer. This accounts for 22.43% of app downloads within the audio processing SDK category.

DOUAudioStreamer is a Core Audio-based audio streaming player SDK for iOS and Mac.

Total Apps
740
App Store
App Share
4.14%
App Store
Apps
738
Games
2
Total Downloads
1.25b
App Store
Download Share
22.43%
App Store
App Downloads
1.24b
Game Downloads
7.45m

Use the 42matters SDK Explorer to find all apps that use DOUAudioStreamer.

8th

SoundWave

Check “SoundWave” SDK Insights

Among all apps utilizing audio processing SDKs, 2.16% have integrated SoundWave. This accounts for 1.73% of app downloads within the audio processing SDK category.

Total Apps
386
App Store
App Share
2.16%
App Store
Apps
384
Games
2
Total Downloads
96.45m
App Store
Download Share
1.73%
App Store
App Downloads
96.45m
Game Downloads
1.61k

Use the 42matters SDK Explorer to find all apps that use SoundWave.

9th

JUCE

Check “JUCE” SDK Insights

Among all apps utilizing audio processing SDKs, 1.19% have integrated JUCE. This accounts for <1% of app downloads within the audio processing SDK category.

Total Apps
212
App Store
App Share
1.19%
App Store
Apps
210
Games
2
Total Downloads
17.02m
App Store
Download Share
<1%
App Store
App Downloads
17.02m
Game Downloads
286

Use the 42matters SDK Explorer to find all apps that use JUCE.

10th

Yandex SpeechKit

Check “Yandex SpeechKit” SDK Insights

Among all apps utilizing audio processing SDKs, <1% have integrated Yandex SpeechKit. This accounts for <1% of app downloads within the audio processing SDK category.

Yandex SpeechKit is an SDK that allows application developers to use Yandex speech technologies: speech recognition (Speech-to-Text) and speech synthesis (Text-to-Speech).

Total Apps
27
App Store
App Share
<1%
App Store
Apps
27
Games
0
Total Downloads
957.26k
App Store
Download Share
<1%
App Store
App Downloads
957.26k
Game Downloads
0

Use the 42matters SDK Explorer to find all apps that use Yandex SpeechKit.

11th

Houndify

Check “Houndify” SDK Insights

Among all apps utilizing audio processing SDKs, <1% have integrated Houndify. This accounts for 9.11% of app downloads within the audio processing SDK category.

Total Apps
5
App Store
App Share
<1%
App Store
Apps
5
Games
0
Total Downloads
508.14m
App Store
Download Share
9.11%
App Store
App Downloads
508.14m
Game Downloads
0

Use the 42matters SDK Explorer to find all apps that use Houndify.

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Frequently Asked Questions (FAQs)

How does 42matters collect this data?'

We’ve developed a number of machine learning algorithms that scan millions of mobile and connected TV (CTV) applications on a regular basis. In addition, we collect ground truth app performance intelligence and use this data to build statistical models that estimate the performance of apps for which we do not have ground truth data.

What SDK data does 42matters collect?'

We track over 2,300 of the most popular SDKs integrated in iOS and Android apps. We collect a variety of SDK insights (title, platform, ID, category, and developer website); performance metrics (the number of apps that have installed each SDK, installation and removal trends, and app downloads); market share statistics (including market share per app category); and more!

How can I access 42matters’ SDK data?'

The most direct way is to use our SDK Explorer, which is a visual, web-based research platform that enables you to peruse all 2,300+ SDKs that we track. It’s great for market research, lead generation, competitor analysis, etc. However, more technically-inclined folks might prefer our APIs and File Dumps, which enable you to query info for specific apps or SDKs. You can also use our other research platform (the Explorer) to view integrated SDKs by app.

Can I use 42matters’ solutions to generate app publisher leads?'

Absolutely! We actually wrote about this on our blog. We focused on ad network SDKs, but the examples are applicable to most SDK types. To summarize, you can use the Explorer’s advanced filtering capabilities to home in on best-fit app publishers, leverage the SDK Explorer to see which apps use your competitors’ SDKs, and use our APIs and file dumps to build custom lead generation processes.

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Can I use 42matters’ solutions to find SDKs for my app?'

Definitely. The SDK Explorer enables you to sort SDKs by category, identify similar SDKs, analyze SDK reliability, and more. In addition, you can use the Explorer to monitor your competitors, including which SDKs they add and remove, their current tech stacks, and SDK changelogs. This means you use our solutions not only to find the right SDK for a particular purpose, but also which SDKs you might need to keep up with your rivals.

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