Both client and server devices must be on the same local network.
The server part defines a list of talk times and the ending hour of the session. The app calculate the advance or delay. The server user sends new countdown times at the beginning of each talk and can also send text message to the speaker. The new countdown time integrate the delay proportionally to end the session on time.
The client part acts like a simple countdown timer and stopwatch. The countdown is remotely controlled. The stopwatch can be started remotely or locally. And text field can receive messages from the server user.
This is really helpful for synchronization of time between timer servant and the speaker. Would wish this also work for android 4.0 and below for low ends. This is the only app i see that suits best on timing. Keep it up! Looking for more updates! Would recommend this to my bro's. How to stop timer?