Apps like Old World Search ...

Here are some great alternatives to Old World Search ... by The Rupert Group :
Oklahoma Historical Markers
Oklahoma Historical Markers
★4.2
Explore Nebraska History
Explore Nebraska History
★4.9
History Near You
History Near You
★3.7
East Texas History
East Texas History
★3.8
New Orleans Historical
New Orleans Historical
★4.6
Intermountain Histories
Intermountain Histories
★5.0
Today in History
Today in History
★4.7
Cleveland Historical
Cleveland Historical
★5.0
Historical Calendar
Historical Calendar
★4.6
World History Maps: The World
World History Maps: The World
★4.7
Civil War Battlefields
Civil War Battlefields
★4.8
Historic Scotland
Historic Scotland
★4.1
Second Temple
Second Temple
★4.8
Revolutionary War Battlefields
Revolutionary War Battlefields
★4.5
History Extra: Unlock the past
History Extra: Unlock the past
★4.5
Map Marker
Map Marker
★4.8