MMDE

Ideally,
the ability to choose what to back up / sync:
all settings offline lists templates filtering templates .... but mainly I'm concerned about the overall backup and synchronization between devices.
For example, yesterday I had to uninstall Cachly, I downloaded Offline Lists as a backup, but I forgot about Cachly.sqlite and apart from Offline Lists, I had to set up everything from scratch, even though I have everything on my iPad, which now had a family member with and is about 600 km away from me for about 2-3 weeks, so I re-created all the templates from scratch based on the old logs for the caches that I found in the past. And also the alert settings for approaching a cache....
Actually, both backing up to iCloud and syncing would be best.
The fact, as i've red here on forum, that some users don't want synch between devides and so on, it I think is no reason to deprive others of that option.
Simply give the choice: Do you want or don't want backup/sync. (as a togle)
I don't understand why should we do it again and again manually.
 
I appreciate your work and the app itself is just a dream come true for me as a geocachers.
The official app may just be embarrassed because it should look like Cachly, but this really, really bothers me.
I'll gladly pay extra for it, even though I bought the app and the premium maps as well.

My plan is to submit to Apple this month.

I can mark it as SOLVED.

I reall don't have any clue, how's it possible, but the original Cachly folder with 2 subfolders Photos and Photos 2 was really deleted.
Even though I manually created a Cachly folder and a Photos subfolder, adding a photo to a private note didn't work.
Only when I restored the completely mysteriously deleted original folder created by the app and all the files in it in iCloud, adding a photo works again. 
I'm not a lame when it comes to iCloud and the whole Apple ecosystem as well as the digital world and life, but I really can't explain this in any way. Simply "X-Files."
Conclusion:
a) problem solved 
b) thank you for your efforts and willingness to help.

Thanks for the suggestion, we will look at add this in a future version.

No, it does not currently. I have played around with this, but don't really have plans to release it for Mac at this time.

I wonder if support for Apple Carplay is in the works for Cachly.