The composer
One post has one video (or photo), one caption and any number of channels. Each platform's own options sit right under the caption:
| Platform | Takes | Options |
|---|---|---|
| Reels, photos | Also share to feed | |
| Facebook Pages | Videos, photos | Caption only |
| TikTok | Videos | Privacy level, comments, duet, stitch, branded content disclosure |
| YouTube | Shorts (vertical or square, up to 3 minutes) | Title, visibility, made for kids |
Limits are checked before you schedule, not after it fails: file type and size, duration, photo aspect ratio for Instagram (4:5 to 1.91:1), caption length and hashtag counts.
Files
- Videos: MP4 or MOV, up to 10 minutes; size up to your plan's largest upload.
- Photos: JPEG, PNG or WebP up to 8 MB (stored as JPEG).
- Files live in a private bucket in the EU and are deleted 30 days after their last post went out.
The queue and the calendar
The queue is a departures board per day: what leaves next, what went out (with a link) and what was delayed and why. The calendar shows a month of posts as 9:16 posters. Edit or cancel a post any time until it starts publishing.
When something fails
Network hiccups and platform outages are retried automatically with growing pauses. If a platform refuses a post (for example a daily posting limit), the board shows a red delay note with the platform, the reason and what to do, and the post's author gets an email. A channel whose sign-in expired shows Reconnect.
Connecting channels
- Instagram: choose Continue with Instagram in Meta's sign-in and pick the account. It has to be a Creator or Business account (switch in the Instagram app). Accounts in a Meta business portfolio can also come through Continue with Facebook.
- Facebook: sign in and pick the Pages reelport.io may post to.
- TikTok: sign in and allow posting.
- YouTube: sign in with the Google account that owns the channel.
Each connected account takes one channel slot on your plan.