Sites and apps similar to OpenHistoricalMap include Old Maps Online, which is free. Other options are History Maps and Chronas. In total there are three Map Services like OpenHistoricalMap for iPhone.
Comprehensive platform for locating digitized historical maps worldwide, offering geographic and temporal search tools, direct links to primary map images, metadata details, and access to collections from libraries, museums, and archives.
History Maps is a platform where Users can explore and create timelines and maps of historical events. With History Maps, a User can learn about historical events in the most intuitive way, visually. Geospatial context( space) and Temporal context(time) are very abstract...
Chronas is a history map application with over 50 million data points which every registered user can curate and contribute to (just like Wikipedia).
