On iPhone, notifications only arrive in the app added to the Home Screen. Cloud sync must be on so the server knows your progress.
Custom sections are saved on this device. The default One Punch Man set can be restored anytime.
Needed to sync daily records across devices and to send notifications. Your private key keeps it yours.
Records are saved on this device by date, and synced to your private cloud database when cloud sync is on. The rate is the average progress across all sections, counted within that day only.