The Apollo iOS/Android app can lock the Go, estimate remaining battery life and permit firmware updates. Notably, it shares the professional's front and rear regenerative brakes, rear drum brake and thicker kickstand for security. This difference makes sensible perception as most US states have adopted a tiered classification system https://www.electricscooterhaiba.com/electric-scooter-for-sale-cheap-fold-up-electric-scooter-product/