OP wrote:
"With iPhoto no longer available to me after updating from SL to El Capitan (which I knew before doing), is there a mac photo app similar to iPhoto."
iPhoto 9.6.1 still runs fine under El Capitan.
What makes you think you have to replace it?
How to get iPhoto 9.6.1:
- First, you need to move (or copy) the current version of iPhoto to a location OTHER THAN the applications folder (to have a backup copy available)
- Next, DELETE the version of iPhoto you have now from the Applications folder
- Then, go to the App Store and check "purchases" (I think this is the way it works, even though iPhoto was "free", it should still show up)
- Now, RE-DOWNLOAD iPhoto.
- This should download version 9.6.1 and put it into your Applications folder.
One other note:
If after trying, you can't get iPhoto this way (i.e., "through the official Apple download channels), there are (cough) "other ways" to get version 9.6.1 ...