> The main problem with every one of the apps I tried is that they don't handle investments well.

Could you expand what were you looking for with respect to investments that was lacking?

I use GnuCash for many investment accounts (in multiple currencies) and haven't run into any limitation, it can show me the true net worth graph.

I'm talking about apps similar to Mint and YNAB. Specifically I used to use an app called Yolt (which was shut down) and then was on an app called Emma for a bit.

I'm sure GnuCash would also work just fine but ultimately it's also a full double entry system. I never tried it because I came across ledger/hledger/beancount first and, being command line tools, they appealed more to my sensibilities.