Fix bug.
Speed Alert will always inform user the current speed limit of the road through voice with prompt screen, as well as warning user to slow down if over speed. Therefore, the driver can fully concentrate on the situation of the vehicle ahead instead of distractedly observing the speed limit sign board at the roadside.
Speed Alert is a fully automation system, the task will be automatically start in driving mode without any explicitly settings. User only needs to download the speed limit data according to the user location. (Location permission is required to download the data based on user location)
It's totally free for use and download, as well as auto update when new route of data is available.