A useful app that collects radar weather feeds and uses it to prompt users of possible precipitation. The app needs not be active for it to work. It uses ur last know location or a fixed location and the server sends out notifications to your phone. Accuracy is good because it uses actual read-outs from radar instead of feeds from weather forecasts. U can set a custom radius, sensitivity and some other options.
This app is useful for users in Brunei and Malaysia especially because of the lack of good weather prediction.
My guess its price is based on cost of radar feeds that also determines its region of use. This is an ideal app for bikers to not only warn of impending showers but also predict weather along our routes.
Naughtilus about Rain Alarm Pro Weather Radar