On the standard version of Snoop, you can create up to three custom categories.
To create a custom category, just tap the ‘'Spending' tab from the navigation bar, then when on the 'Your Spending' section, tap 'Edit custom categories'. You can then add a new category, or manage the one you've set up.
Once created, you’ll be asked to add transactions to your new category – you can do this either by picking individual transactions, or by merchant. Alternatively, you can tap on a transaction, then the box which displays the current category, then at the bottom of the list of categories you'll see the option to set up a new one.
If you'd like to create more than three custom categories, you can subscribe to Snoop Plus which allows you to create as many as you like!
Snoop Plus is available for £4.99/month or £39.99/year.