My device: IPhone 12 MiniMy purpose for purchasing: free up space on my iPhone to stop paying for iCloud storage.At first I was weary about the fact you must download their app in order to use the flash drive. Their app Y Disk is what moves your things from your phone to the flash drive. But I saw another comment where they didn’t want their photos being uploaded to the app, and possibly end up in their possession or in a cloud somewhere for anybody. Now, I did figure out how to use it another way, where I DIDN’T have to upload my photos to their app in order to download my things to my flash drive. I’m not sure if they were still able to possibly steal my things, but ignorance is bliss.If you want to know how I did it, I will not gate-keep. I also found my way was a lot faster when it comes to quantity. I was able to select whole folder(s) under Files with 600+pics in it, vs using Photos app and only being able to upload 5 selected photos at a time(this is all as long as you’re avoiding uploading your pics to YDisk first) …When you first plug in the flash drive you are prompted to download the app. After the app is downloaded it asks you the usual apple photo permission questions- All photos, Selected photos, or None. I actually chose selected photos and only uploaded one photo. But I didn’t need to because of how I used Files.Using FILES app, under “On My a iPhone”, I created folders for what I would usually create an album for. For example, say I made a folder named 2021 Halloween… I’d then go back to my Photos app, select all of my Halloween photos from 2021. After all the photos I want moved are selected, I’d press the “share” button on the bottom left and scroll down to click “Save to Files”, select the folder 2021 Halloween, then “Save”.After I had my photos in the Files app, I’d plug the flashdrive into my phone, go to Files app, press the menu button with the 3dots on the top right, choose select, select the folder(s) you want to upload at that time. Then press the share button on the bottom left, and select “YDisk” out of your app options. It will then begin to copy your photos to the flashdrive. Depening on the size of transfer, will determine how long it takes to upload of course. Because I am paranoid, before I delete my newly flashdrive stored folder, I’d plug my flashdrive into my PC to make sure everything downloaded. I’d then delete the folder, freeing up even more space.If you are wondering about the speed, if you have a lot of photos selected it can take a little bit of time to first download(photos->files/files->flashdrive), but it’s not terrible. 10 minutes would be exaggerating. But of course the folder size will determine how long it is to download.I’ve already recommended this to friends and family!I will share a scare I had with you. After a couple uploads I did a couple big file/photo deletions and my phone crashed. My battery was at sixty something. And it just turned off. It didn’t want to turn back on. If I plugged it in, nothing happened. I tried a couple different Troubleshoots, but after an hour and a half it finally powered back on. NGL, I was immediately regretting thinking it was the flashdrive. But nope, so I still recommend it.Update:11/2023 I still stand by what I say and still upload my pics and documents onto this flash drive leaving my iPhone free of space and from having to rely on paying for cloud based storage!