The transportation app Moovit has added a feature that allows users to check their SUBE balance directly within the app.
To check your SUBE balance you must be registered on sube.com.ar. You balance is updated every 72 hours, so not very up to date. It displays the same results that you would see if checking your balance on the SUBE website, btw. For now, that's all. Let's hope one day we will be able to charge it from our desk!