Yes, it is not only safe to use the Tor browser on your smartphone https://www.dmfs.xyz, but I think it has become necessary in today's world. See, just a few years ago, privacy was not as invaded and plundered as it is today.

The Tor browser is a little slower than your normal browsing experience, but that's the price you pay for privacy. When using the Tor browser, doors and windows open to the world will be closed. In a world where you can only be as safe as possible and never completely safe, always take as safe as possible.