Um, I can do that with a pen and paper fairly easily.
That’s kind of like saying that there is an iPhone app to help you figure out a tip in a restaurant.
There are indeed such apps (for tipping) which is weird because phones come with calculators for the math challenged.
As for this DebtBomb app I don’t think everyone has the time to figure out the permutations of the taxcode (hence HR block, quicken/turbo tax etc.)
Especially the younger generation who are tech savvy but still not wise to politics.