Edgewonk works for all currencies worldwide.
When creating a new trading journal, you can select your account currency from the dropdown menu.
Step 1: Open the "Create a new journal" popup in the top right (read more here)
Step 2: Choose your currency from the dropdown list
Alternatively: existing journal
If you want to change your journal currency, for an existing trading journal go to Settings > General and then use the second dropdown to select a new currency.