The Wi-Fi Messenger Client for iOS provides a native iOS application for sending and receiving Wi-Fi Messenger alerts over a Wi-Fi or carrier network. When a handset leaves Wi-Fi coverage messages are auto-rerouted for carrier SMS delivery. Upon returning to Wi-Fi coverage registration with the Wi-Fi Messenger Server is automatic. Full control is provided over notification methods for both initial notification and reminders. Threading of conversations is configurable on a contact by contact basis. The client is compatible with both mobile handsets and tablets.