This is such a good app, it’s never failed me on my journey so far.

I use the handwriting pad to look up kanji all the time, and it works surprisingly well. On the few cases it doesn’t recognize it, the ability to look up by radicals is super helpful.
The UI is sleek and intuitive, and I haven’t encountered any bugs. I seriously don’t understand what reason people would have to give this anything other than a 5-star rating.