With the demise of SPQR support, Scriba is a worthy successor. Has inflected form search, English-> Latin search, declension and conjugation info, has the Lewis & Short as a basis, and a number of other nice features. I've run it on iPhone, iPad, and iMac (M1). The only real complaint I have is that you cannot copy/paste from the dictionary. And when switching the search method, it clears the search term.