THE TUNER HAS BEEN REBUILT The pitch-detection engine has been rebuilt for accuracy, particularly on low strings. It holds within about a cent on a usable signal, and when it isn't sure it shows nothing rather than a number it can't stand behind. • A proper analog needle dial. The scale is drawn as an arc, so the needle actually points at the value it reads — including at the extremes, where a straight scale would lie. • Placement guidance in the tab. A phone microphone hears the octave above a low string more strongly than the string itself, so where you put the phone matters more than people expect. Near the 12th fret, not across the bench. • A cleaner display: the note, the verdict, and the needle. DATA CORRECTIONS • 13 tonewood hardness and density figures corrected against published reference data. Indian rosewood, laurel and ebony were the significant ones — Indian rosewood had been listed as harder than Brazilian, which is the wrong way round. • Every one of the 623 model spec sources now cites the manufacturer. FIXES • Prefilled customer-spec fields no longer truncate at an inch mark. • Instrument Profiles now read measurement ranges correctly. CLEARER ON SCREEN • Disclaimers consolidated into one wording — short where it is guidance, full where it carries weight. • More room for content: smaller header, less dead space above it. • The string tension explanation is broken into blocks you can actually scan. • Cross-links between tools that were isolated from each other. SMALLER • Dead code and unused fonts removed. The app is lighter, and so is every print job.