Description: DroidRef is a free online Android reference guide that provides detailed information on Android APIs, Intent filters, permissions, samples, guides and tools. It allows developers to easily look up Android platform features to build their apps.
Type: software
Pricing: Open Source
Description: OpenStreetMap is a free, open-source, crowd-sourced map of the world. Volunteers collect map data using GPS devices, aerial imagery, local knowledge, and other free sources to create and update the map database.
Type: software
Pricing: Open Source