You choose the helper
Use a writing helper you choose, one that runs on your computer, or sample ideas that never leave this computer.
Optional
Help, only when you ask.
Get caption ideas next to your draft, then keep the words you want. Nothing posts by itself, and you can lock a post so it is not rewritten.
Words, not the video
A suggestion uses the words you are writing. Your photo or video is not sent out to write the caption.
Desktop tools, on this computer
If you later let a desktop writing app see your files on this computer, it can look but not change them at first. Posting stays a choice you make in MediaConnect.
No outside switch-on
Signing in to a writing account does not turn on an outside MediaConnect service. Remote tools remain off.
The words stay yours. See how the rest of MediaConnect works.
Or read the Founders offer when you want that price.