Is Disk Doctor better than EtreCheck?

Your understanding is correct. EtreCheck is primarily a data-gathering and reporting app that does not require an installation procedure.

Never install any so-called "doctors" or "cleaners" on a Mac, and that goes double for any "doctor cleaners".

AmyCat49 wrote:

Is Disk Doctor better than EtreCheck for finding and fixing computer files? Or are there some other apps, and from what I understand the clean my disk apps are pointless..

Thanks.

And what issues are you having that begs the original question?