Good Duolingo replacement on the go that covers all grounds on a basic level?

So, in many places I see Duolingo being criticized, with some even calling it harmful. Now, I've used it for 3 months, really liked it, and was planning to keep using it honestly, as so far it's been a great tool to learn specifically on the go (quiet walks, sitting in public transport etc). And honestly, I paid for a year of duo, so sunken cost fallacy is definitely at play too.

That said.. if a better replacement does truly exist, I am curious. If a great all grounds covering alternative can be pointed out, it might be helpful to all current Duolingo users.

So, requirements:

1. Usable on mobile devices. Personally use Android.
2. Primary focus on vocab. Other basics being included like Kanji are definitely a plus too.
3. No set limit per day to how much learning you can do. Many tools use a limited amount of new words per day. Being able to adapt would be a huge plus. Not a requirement.
4. If it's multiplatform (pc and mobile), cross platform is also very much appreciated.

So yeah, I have decided to be open minded.. if Duo is so had, what other app is better at covering the basics for many topics?