It's a website so all you need is a browser, it doesn't matter whether you're using your phone or computer the most important thing is (browser).
If you are on your phone, you can long touch the screen above video until you get the pop-up menu and click (save video as). Or if you're using a computer, you just have to right-click and click (save video as)
Yes, there is no charge, you do not have to pay anything to use our service.
We simply provide you with a service that helps you download tiktok videos that we don't care about and will never save.
There are several reasons like the videos are private or they were deleted or there is a problem with the TikTok site because we use it to retrieve the videos.