The composer
Write once, customise per network, schedule per channel.
- Post to — tap the channels. The right-hand panels show each network's limits and a live preview.
- Customize per network — turn it on to give Facebook a longer text and X a shorter one, add a first comment, a video title, or drop a photo from one network. Fields you leave alone inherit from the master.
- Media — drag files in or pick from the library. Use the ‹ › buttons to reorder and A to add alt text.
- Network options — Pinterest board, YouTube visibility/category/tags appear automatically when those channels are selected.
- Validation — anything a network would reject (length, file type, aspect ratio, missing board) is flagged before you save.