Can we use DFU with our custom iPhone App as the DFU Controller (source of the upgrade binary)?

Can we use DFU with our custom iPhone App as the DFU Controller (source of the upgrade binary)?https://devzone.nordicsemi.com/f/nordic-q-a/65211/can-we-use-dfu-with-our-custom-iphone-app-as-the-dfu-controller-source-of-the-upgrade-binaryHello, a question about this link: https://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.sdk5.v15.0.0%2Flib_bootloader_dfu_process.html which says "As the DFU controller, you can use the following Nordic tools: nrfutil (versionen-USTelligent Community 13Wed, 26 Aug 2020 08:52:05 GMTRE: Can we use DFU with our custom iPhone App as the DFU Controller (source of the upgrade binary)?https://devzone.nordicsemi.com/thread/266404?ContentTypeID=1Wed, 26 Aug 2020 08:52:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6544b857-cd86-4685-bdb2-6245551223cdEinar Thorsrud<p>Hi,</p> <p>You are free to use your own app as the DFU controller. We supply DFU libraries for iOS as well as android to make that easy for you. See <a href="https://github.com/NordicSemiconductor/IOS-Pods-DFU-Library">iOS DFU Library</a> and <a href="https://github.com/NordicSemiconductor/Android-DFU-Library">Android DFU Library</a>.</p><div style="clear:both;"></div>