Though not free of charge, Dropbox does offer some of the functionalities you mention.
∙ pictures can be ordered by file names (e.g. 01_xxxx.jpg appears before 02_xxxx.jpg) or by using a slide show)
∙ comments (but not captions) can be added
∙ sharing and access privileges can be set to various levels
∙ as owner one gets information on who is accessing
The various types of sharing can be made for both folders and individual files, be bi-directional, and using Dropbox’s built-in software or those specified by the owner, for editing.
The storage capacity (I think) is from around 1 TB to no limit, depending on the subscription, which allows for sharing videos; something I use to sway my customers that pecuniary compensation for the efforts would be welcome. This far both have been more resistant than W. Churchill towards paying his tailor.
- This reply was modified 1 year, 1 month ago by Sven-Olof Jansson. Reason: editing of format