Improve confusing language for unequal splits

[sloria]

The flow for adding an expense where 1 person is owed the full amount is confusing/error-prone.

To reproduce:

1. Add expense. Description = Test, Amount = $1
2. Hit "split equally (2)" to go to the split option.

At this screen, it's unclear if the amounts mean you owe $ vs you are owed $. I mistakenly assumed you are owed $ (fwiw, my friend did the same thing last week when she tried to the same thing).

If you click "You", the screen shows

"paid for You" is ambiguous here. If you hit "Save", the transaction silently fails and never shows up.

Describe the solution you'd like

Clearer language to show the direction where money is owed. fwiw, Splitwise is pretty unambiguous and provides "50:50" or "full amount" as defaults, which is sensible

Describe alternatives you've considered

App version
2.1.1

Additional context

[krokosik]

The split screen tells you how the amount is split among members. There are two ways we can go about this:

1. Display actual money flows
2. Display how an amount is split

Personally, I believe option 2 is clearer, as this is the split modal, so you define how you split the amount. I am quite against changing that, especially that this is the first time I'm hearing this is confusin, so I would assume the majority of users are quite used to the current UX. Furthermore, the screen clearly tells you that the bill was split 0,5$ per person.

I guess what you want is a dedicated dialog for 2 person expenses, which is quite sensible. If I am correct, could you rephrase your issue to clearly state that?

[sloria]

i think it's OK to keep showing how the amount is split (option 2) on the split modal. I think it's the second screencap ("Paid by you and paid for you" -> silent failure) that's particularly confusing.

I guess what you want is a dedicated dialog for 2 person expenses,

i'm not sure; wouldn't the language be the same even if splitting among more than 2 people?

[mvanhorn]

Implemented in #676.