CLE International has a dedicated app (iOS/Android) called . You purchase individual levels (A1 to C2). For B2/C1 vocabulary, the app offers:
: You can find various versions and previews on platforms like Dokumen.pub for reference. CLE International Vocabulaire Progressif Du Français B2-C1.1 Niveau Avancé vocabulaire progressif du francais b2 c1 pdf best