Multiple iOS music applications have had their reviews postponed by several weeks, with some applications being rejected four times

Multiple iOS music application developers have reported that their new apps have been stuck in Apple App Review for several weeks, including AudioThing, Igor Vasiliev, and Sugar Bytes. Apple's official review guidelines state that typically at least 50% of submissions are reviewed within 24 hours, and 90% are completed within 48 hours. AudioThing's Materia took 25 days to get approved, during which it was rejected once; its collaboration with Hainbach, Seconds, has been under review for 29 days. Pittsburgh Modular's Microvolt 3901 synthesizer VST version was released on October 27, while the iOS version has been delayed until November 12.

Unfiltered Audio developer Michael Hetrick stated that Sinusoidal Run Rhythm was rejected four times for reasons including requests for a demo video, requests to prove the audio technology license for the term "Polyharmonic," and classifying SRR MIDI as a similar junk app to SRR. After more than a month of communication, the app currently only has an audio version released, while the MIDI version has not yet been launched. CRUX Synth developer Marek Dendes also mentioned that his app was rejected four times for reasons such as "designing junk content" and "duplicating existing apps," and despite multiple appeals, he has not received a response.