Jelly-Ont is a new ontology browsing application for Android. Jelly-Ont exploits a layered architecture aimed at decoupling ontology access primitives from graph representation engines and from node-layout algorithms. At the lower layer, ontology access is handled by full-blown, well established ontology APIs such as Jena (see Apache Jena on Android), OWL API, etc. The ontology model exposed by such APIs is then abstracted into a shared graph representation, designed taking inspiration from the Prefuse Information Visualization toolkit architecture. This shared representation offers standard query primitives to layout algorithms, thus enabling them to get the information needed to successfully set-up an ontology visualization.