"Porgrams" are usually paid, MassPlanner i guess is one of them.
I am not so experienced with Facebook and social stuff, but recently i joined ~80 groups for spa....marketing purposes.
So, i've read what Basstrackerboats did with 50 tabs opened for when you want to post in multiple groups..i guess his PC hates him now.
Anyway..i don't like this option nor those paid options, so i digged until i found 3rd option.
And that's an app for Android called Facebook Lite. It's quite light, it has ~2MB in size, but it has most Fb functions.No fancy stuff in there.
So, here is how i post to 80 groups in ~6-7min with that app:
I make a post, on my timeline or on a page, it doesn't matter.And i push the share button.
Now, the app gives you options where to share: on timeline, on a page, in a group and so on.Select In a group.
The beauty is that after selecting this, you are given the list with all your groups.When you select the group, the post is shared instantly and you can press Back button, which brings you to the Share button.
All this is cached, nothing reloads except the notification that your post was shared.So it's super fast.
The steps are the same every time, just pick next group where to share:
Share button > In a group > Group1 >Back button > Share > In a group >Group2... and it goes in loop.
Thats my free and pretty fast method for it.