Photo app to easily add comments and date stamps. It can also edit location by address, coordinates and by dragging a pin on a map. What Pic Navi can do: Opening a map to navigate back to photo location. Copying the GPS coordinate of the photo. Adding / Modifying / Deleting the photo's location. Modifying the photo's timestamp. Showing the timestamp in the photo's location (Timezone support) Showing / Inscribing the timestamp inside the photo. To see the map, tap the compass icon. To modify GPS, long-press the icon. To change the appearance of the timestamp, tap the timestamp. To modify it, long-press it.