There aren’t many apps in this domain (a trip photos and videos organizer by location, with “at a glance” overview of the trip on a map), and with good privacy protection. Thanks to the feature to select photos in a date range, you can have a trip defined literally within seconds. A trip definition is a collection of references to, ie, not copies of, desired photos and videos, either manually selected or picked up from a specified date interval, hence, a minuscule additional demand on the phone’s memory. On the overview map of the trip, multiple photos are grouped within circles, each circle containing photos within a radius that is specified by the user. The circles are connected (automatically) by lines that show a mode of transportation between them, eg., by car, walking, etc. These modes can be user defined. The developer has been very responsive to suggestions, and answering clarifying questions. The best is to use the free trial to assess if this is the app for you. Although it may not be obvious, there is an option to purchase a life time license.