King of FM
King of FM is a free AudioKit Pro software instrument that delivers sampled FM and electric piano sounds for iPhone, iPad, AUv3 hosts, and Apple silicon Macs.
What is King of FM?
King of FM is a music software instrument published by AudioKit Pro, LLC. AudioKit Pro describes it as a free app for iPhone, iPad, iOS AUv3 hosts, and Apple silicon Mac in standalone use. Its product page says it includes more than 300 presets, over 10,000 samples, built-in effects, MIDI keyboard support, audio recording, and WAV export. AudioKit Pro also states that the sound library is based on sampled classic FM-era synthesizers including DX7, DX7II, TX81z, and SY77 sources. Users commonly encounter it as a virtual instrument for songwriting, music production, and playing keyboard sounds inside compatible mobile DAWs such as GarageBand or in the standalone app. On Mac, its stated role is a standalone Apple silicon app rather than a general-purpose system utility. AudioKit Pro also lists King of FM among the apps it continues to support under the AudioKit umbrella.
Key features
- Provides over 300 presets built from a large sampled FM sound library.
- Works as a standalone instrument on Apple silicon Mac.
- Supports AUv3 use on iPhone and iPad in compatible music hosts.
- Includes built-in effects such as phaser, chorus, reverb, delay, and stereo widening.
- Supports MIDI keyboard input for performance and production workflows.
- Can record performances and export WAV audio files.
- Uses sampled sounds derived from classic FM-era synthesizer hardware.
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Safety overview
Status: Mostly safe
This is a legitimate music creation app from AudioKit Pro. It is not known as malware from the verified publisher context provided here, but music apps can store projects, presets, recorded audio, and other user content, so removing related files may delete creative work or settings.
Recommendation: Keep it if you use FM synth sounds, AUv3 workflows, or AudioKit instruments. Remove it if you no longer use the app and do not need its presets, recordings, or related music-production data.
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