Letterr is a native macOS font-design workspace for building, refining, and validating typefaces from first outline to export.

Compose and arrange MIDI, audio, and drum sequences in one focused macOS workspace; generate editable starting points; split recordings into stems; translate audio and sheet music into editable parts; and shape performances with looping, remixing, arpeggiation, automation, effects, and audio buses.

Deckbox analyzes the cards in every custom Commander deck to estimate its official Commander Bracket and calculate a detailed CRISPI score across Consistency, Resilience, Interaction, and Speed.