This app was mentioned in 5 comments, with an average of 1.60 upvotes
There's a Dexter app on Android but can't tell if it's the same
I like Dexter
very lightweight.
I really like Dexter it's nice simple and very light weight
Try this.
Hmm, I see an iOS app named "Déxter" and an Android app named "Dexter". Which appear entirely unrelated to each other. Are you referring to one of those? Or something else?
I highly recommend Poke Genie, which is available for both iOS and Android (and well worth the few dollars to remove ads). It does an amazing job of OCRing screenshots - on Android I hear it can read directly off the game's screen - to get the details on your Pokemon, and also has an extensive Pokedex built in (perhaps not immediately apparent, swipe the screen and choose "Pokedex" instead of "Scan History").