Auto Sync files from Amazon S3 Bucket to iPad Files

The pilots I work with use iPads/iPhones to do a lot of their work and they need a solution to sync files from an AWS S3 Bucket to a Files location on their iPads.

The ultimate would be an app that checks when you're on Wifi at daily intervals to see if there's a new version of the file and if there is, automatically download it to a specific folder in Files. It be nice to be able to specify files to 'sync'. Haven't come across anything like this.

There's an app called S3 Manager that I can see the files in the S3 bucket and highlight the file and then save to 'Files'. Sort of a solution but there's no option to overwrite the current file so files just keep accumulating if you forget to purge them. You also can't specify the folder so in order to use it, you have to move it to the specific apps folder.

Is there a better approach to this?