Palamoa is an Internet of Things cloud service for the Web and mobile devices, that lets you monitor your Internet-connected sensor devices in real-time, free of charge. Besides real-time monitoring, Palamoa also securely logs your sensor data, for later retrieval and analysis.
Configuring vendor-independent devices to use Palamoa usually can be accomplished in a matter of minutes on palamoa.de, as long as the device supports sending its data in the industry-standard JSON format over HTTP.
Palamoa for Android gives you access to the historical and recent IoT device data you care about.