[HELP] Fiverr voice-over project requiring submission through an external app — is this normal and allowed?"

Hello everyone. So i recently got a message on Fiverr from a client representing a company called SMARTI Co., Ltd. They’re offering a voice-over gig where I’d record 120 short commands using an app called Funcrowd. The client says I’d need to do the recordings directly in the app on my phone, and the payment ($12) would go through Fiverr.

My questions are:

• Is it normal or allowed by Fiverr’s policies to complete voice-over gigs using a third-party app instead of uploading the audio files directly to Fiverr?
• How do I prove to Fiverr (and protect myself) that I actually did the work if the recordings are submitted through the app and not attached to the order page?
• Has anyone here done similar gigs (especially with Funcrowd), and was your experience positive?
• Are there any red flags I should watch out for with this kind of setup?

I want to make sure I’m not violating Fiverr’s terms and that I’ll actually get paid for my work. Any advice or experiences would be really appreciated!