Palma de Mallorca Travel Guide with Offline Maps by tripwolf.
They say: “Discover the highlights of Palma de Mallorca with tripwolf, your personal travel guide! Follow the recommendations of the tripwolf community and get tips from experienced travel writers. The app includes maps (also available offline!), an Augmented Reality Viewer and free updates.”
Free: Palma de Mallorca Travel Guide (FOR iOS)