Goodnotes 5 — V5.7.38 Premium Mod -ios-

From user forums (r/sideloaded, iOSGods comments):

If you rely on GoodNotes for work or school, consider buying the official app. It’s a one-time payment (usually $7.99) and supports the developers. But if you want to test-drive premium features before buying, the v5.7.38 mod is a solid option. GoodNotes 5 v5.7.38 Premium Mod -iOS-