Answer found

But it's only available in these languages:

• Russian (Русский): ZaK App - planner
• Greek (Ελληνικά): Zak App - Πλάνο Κρατήσεων
• Italiano: ZaK App - Planner
• English (Great Britain): ZaK App - Planner
• Français: ZaK App - Planner
• Español: ZaK App - Planner