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Top 13 Audio Processing SDKs Used in iOS Apps on the Apple App Store
Last update: 25 Oct 2025 CET
App Store

Top 13 Audio Processing SDKs Used in iOS Apps on the Apple App Store

We at 42matters have identified the 13 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 13 most widely-integrated audio processing SDKs:

1st

EZAudio

Check “EZAudio” SDK Insights

Among all apps utilizing audio processing SDKs, 25.22% have integrated EZAudio. This accounts for 17.49% 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
4.04k
App Store
App Share
25.22%
App Store
Apps
4.02k
Games
21
Total Downloads
1.65b
App Store
Download Share
17.49%
App Store
App Downloads
1.65b
Game Downloads
2.17m

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

2nd

JSQSystemSoundPlayer

Check “JSQSystemSoundPlayer” SDK Insights

Among all apps utilizing audio processing SDKs, 24.53% have integrated JSQSystemSoundPlayer. This accounts for 3.93% 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
3.93k
App Store
App Share
24.53%
App Store
Apps
3.90k
Games
31
Total Downloads
370.48m
App Store
Download Share
3.93%
App Store
App Downloads
365.74m
Game Downloads
4.73m

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

3rd

AudioStreamer

Check “AudioStreamer” SDK Insights

Among all apps utilizing audio processing SDKs, 14.51% have integrated AudioStreamer. This accounts for 4.56% of app downloads within the audio processing SDK category.

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

Total Apps
2.33k
App Store
App Share
14.51%
App Store
Apps
2.31k
Games
13
Total Downloads
430.71m
App Store
Download Share
4.56%
App Store
App Downloads
429.24m
Game Downloads
1.47m

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, 10.94% have integrated ObjectAL. This accounts for 6.40% 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
1.75k
App Store
App Share
10.94%
App Store
Apps
357
Games
1.40k
Total Downloads
603.94m
App Store
Download Share
6.40%
App Store
App Downloads
82.53m
Game Downloads
521.41m

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, 9.10% have integrated StreamingKit. This accounts for 9.16% 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
1.46k
App Store
App Share
9.10%
App Store
Apps
1.45k
Games
7
Total Downloads
864.86m
App Store
Download Share
9.16%
App Store
App Downloads
864.39m
Game Downloads
472.66k

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, 5.98% have integrated Nuance. This accounts for <1% of app downloads within the audio processing SDK category.

Total Apps
958
App Store
App Share
5.98%
App Store
Apps
694
Games
264
Total Downloads
68.48m
App Store
Download Share
<1%
App Store
App Downloads
34.74m
Game Downloads
33.74m

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, 3.90% have integrated DOUAudioStreamer. This accounts for 14.65% 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
624
App Store
App Share
3.90%
App Store
Apps
623
Games
1
Total Downloads
1.38b
App Store
Download Share
14.65%
App Store
App Downloads
1.38b
Game Downloads
1.66m

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, 2.80% have integrated SoundWave. This accounts for 1.34% of app downloads within the audio processing SDK category.

Total Apps
449
App Store
App Share
2.80%
App Store
Apps
447
Games
2
Total Downloads
126.01m
App Store
Download Share
1.34%
App Store
App Downloads
126.01m
Game Downloads
1.71k

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

9th

LiveKit

Check “LiveKit” SDK Insights

Among all apps utilizing audio processing SDKs, 2.00% have integrated LiveKit. This accounts for 29.77% of app downloads within the audio processing SDK category.

Total Apps
320
App Store
App Share
2.00%
App Store
Apps
311
Games
9
Total Downloads
2.81b
App Store
Download Share
29.77%
App Store
App Downloads
2.74b
Game Downloads
67.75m

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

10th

JUCE

Check “JUCE” SDK Insights

Among all apps utilizing audio processing SDKs, 1.43% have integrated JUCE. This accounts for <1% of app downloads within the audio processing SDK category.

Total Apps
229
App Store
App Share
1.43%
App Store
Apps
227
Games
2
Total Downloads
31.24m
App Store
Download Share
<1%
App Store
App Downloads
31.24m
Game Downloads
702

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

11th

Cisco Webex

Check “Cisco Webex” SDK Insights

Among all apps utilizing audio processing SDKs, <1% have integrated Cisco Webex. This accounts for 3.43% of app downloads within the audio processing SDK category.

Total Apps
47
App Store
App Share
<1%
App Store
Apps
47
Games
0
Total Downloads
323.74m
App Store
Download Share
3.43%
App Store
App Downloads
323.74m
Game Downloads
0

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

12th

Yandex SpeechKit

Check “Yandex SpeechKit” SDK Insights

Among all apps utilizing audio processing SDKs, <1% have integrated Yandex SpeechKit. This accounts for 5.61% 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
41
App Store
App Share
<1%
App Store
Apps
41
Games
0
Total Downloads
529.04m
App Store
Download Share
5.61%
App Store
App Downloads
529.04m
Game Downloads
0

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

13th

Houndify

Check “Houndify” SDK Insights

Among all apps utilizing audio processing SDKs, <1% have integrated Houndify. This accounts for 5.48% of app downloads within the audio processing SDK category.

Total Apps
4
App Store
App Share
<1%
App Store
Apps
4
Games
0
Total Downloads
516.66m
App Store
Download Share
5.48%
App Store
App Downloads
516.66m
Game Downloads
0

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

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    Analyze installation and removal trends for SDKs. Discover which apps have removed or integrated specific SDKs in a given timeframe.

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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.

What data does 42matters provide on mobile apps?'

A ton! We track 17+ million apps across Google Play, the Apple App Store, Amazon Appstore, Tencent Appstore, and Huawei AppGallery. Our solutions provide access to app details (developer insights, metadata, ASO keywords, contact information, etc.); performance metrics (downloads, MAUs, ratings, reviews, top chart rankings, etc.); technical insights (integrated SDKs, permissions, required capabilities, etc.); content details (categories, genres, IAB categories, content ratings, etc.); compliance information (app-ads.txt, privacy policies, store status, etc.) and much, much more!

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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