When you download an app officially, iOS handles the IPA installation automatically and invisibly. However, the IPA format also allows for —the process of installing applications from sources other than the official App Store.
Many YouTube IPAs integrate download managers, allowing users to save videos directly to their device’s local storage for offline viewing—another feature usually locked behind Premium. Youtube - Ipa
Before YouTube, learning IPA meant buying expensive CD-ROMs or listening to grainy audio tapes. Now, you have an infinite, free library of pronunciation coaches. When you download an app officially, iOS handles
When you are learning the difference between aspirated /pʰ/ (as in "pin") and unaspirated /p/ (as in "spin"), normal speed is useless. Before YouTube, learning IPA meant buying expensive CD-ROMs
Before hitting YouTube, download the official IPA chart (2020 version) from the International Phonetic Association website. You will need the "Consonants (Pulmonic)" and "Vowels" sections.