4 ms·For ios, I've used Free42 and i48 (Daniel Parnell).by abawany 6y agoFor ios, I've used Free42 and i48 (Daniel Parnell).joezydeco 6y agoI own an actual 42S and I prefer Free42.jonsen 6y agoI prefer the iOS app called 42s. Better user interface in my opinion.