Units

It could do with an actual "help" meu,

Esta muy bien esta app, pero estaria mejor si te deja guardar tus opciones preferidas y no tener que estar buscando las unidades cada vez que abres la app.

I wish there was a way to change the default conversion when you open the app. I only use the mm to in and it would be nice not to have to change it every time. Otherwise no complaints

I always use it for inches to millimeters, but every time the app launches, it resets to miles to kilometers. I have to choose my conversion every time I use it because it won't simply retain the conversion I always use.