Calibre Connector

Calibre Connector — Phillip Walker remains a strong performer in the Books category on the App Store, currently holding its best positions in Czech Republic and Slovakia, both at #4 on the Top Free chart. The app is climbing significantly in most markets, with notable gains in Belgium (+79 to #17), Czech Republic (+41 to #4), Italy (+37 to #14), and Germany (+34 to #24), signaling strong upward momentum. Only Poland (-6 to #18) and Estonia (-2 to #15) show slight declines, while Slovakia remains stable at #4. Trajectory is overall positive: although it dipped slightly from its all-time peak of #2 (achieved on 2026-08-05), the 30-day average rank of #5 and broad-based gains suggest the app is sustaining high visibility across European markets.