This should be how both the iPhone and Android app work at this point (please let us know if this is broken for you on either of those). We still have not fixed this issue on the website, though it is something we plan to do.
MarshallShendy S commented
Please add International currency formatting, since some currencies don’t use decimals, and the current format is quite difficult to read.
Unfortunately we’ll need to make some technical changes on our backend before we can support 3-decimal currencies, but hopefully this is something we can work on in the future!
Great idea, leaving it under review since we tend to be pretty conservative about adding new settings. Thanks for submitting!
Very sorry for the trouble! Long-term, we would definitely like to add better support for international currencies with different numbers of decimals, but it will probably be a while before we get around to it. The vast majority of our users use currencies with 2 decimal places, and adding proper support for 0 or 3 decimal places (the other two common values for world currencies) will require significant technical effort both on our servers and in our mobile apps.
Again, apologies for the inconvenience!