Preserver allows you to capture multiple types of observations to comprise an “activity”.

These observations automatically include the geographic location and start and end times, but you can also add text, photos, audio, and even (up to) 30 second videos.
The “activity” consists of your acquired observations and can be collectively shared and/or uploaded to a secure environment in the cloud, can prove your involvement in that activity, and might even protect you against inaccurate claims. These activities are structured in hierarchical folders both on your device, and when uploaded.

If you wish to securely store your observations with controlled access and sharing, including backups, you will require a free Google drive account that comes with oodles of free storage.