I love using Billr!! It is the best app that I have ever used to sort through the dinner bill chaos!! Its great how it separates tax and tip proportionately to how much people spent on their meal and then totals who owes what at the end!! My one suggestion would be to add an additional section to the already 3 sections: Item Entry, Shared Items, and Tax & Tip. The 4th section should be discounts and it should separate the discount proportionately as it does with tax and tip. Other than that, I have no complaints about the app and recommend that everyone should use it!!!