This Pokédex tracker is great, it helped me track what I needed for IoA and main dex, which I finished thanks to it. It also lets me track the shiny Pokémon I have, which could be useful for a shiny dex. I like how it links to Serebii ( I use that instead of bulbapedia ), and shows the weather and place where you can find the ‘mon you need at a tap.
However, It could use an update. Crown Tundra has been out for a bit as I write this, and if it could update to include it, I think that would be the last update it needs. But, if there was a legendary tracker for dynamax adventures too, that’d be even better. Five stars for usefulness, minus one for being a bit behind.