Recommendations for a tracker app for someone with literally zero experience/awareness in nutrition

I recently joined this group because I'm 2 years out from weight loss surgery and working on losing the last bit, so I'm cracking down on my intake. Love the different recommendations and sharing I've seen on here! I've progressed really well, and one of my friends has wanted to join me on the last part of this journey.

I have a pretty long relationship with understanding nutrition, overweight since I was a teen, multiple medical oversight diets prior to wls. Since I'm post op I have a pretty small circle of foods that work for me, and I usually use the fitbit app and Baritastic for food logging, mostly because those are apps that I used for other things, and they just happen to have food logging.

We're in different cities so I can't be as hands on with his journey as he would like, haha, and with him not having the constraints of surgery - and living in a bigger city, working 60+ hour weeks, and generally not cooking at home as much due to those - that he might be better off with a different app that has more data for someone who eats a larger variety of things!

He has zero background on tracking his intake, wants to start going towards keto and CICO. While I'm accustomed to the two apps I use, I have been noticing their little quirks that I feel would make it annoying to a first timer.

It looks like most of the threads recommending apps are six months or older. So I figured, just in case anything has come out more recently, and/or if there's a bit of a learning curve or expectations of nutritional knowledge with the usual top recommendations, does anyone have any good insight on a user friendly tracking app for a first timer that doesn't really have any understanding of how nutrition works, but is trying to learn?

I told him his first steps I'd recommend would be to cut out added sugar and make sure he's getting at least 90G of protein in a day, not even necessarily counting calories to start, since it's so new to him. But I'm thinking, since even that would require some sort of logging and reading labels, maybe we can just jump right in with an app. But I'd like to find one that will work more effectively for him, then the ones that i'm familiar with!

Thanks for any insight!