How to Post to Instagram and TikTok at Once
Instagram and TikTok are the two biggest platforms for visual content. But posting the same video or photo set to both is a chore: download from one, open the other, re-write the caption, re-set the schedule.
You don’t have to do any of that. Here’s how to post to Instagram and TikTok at once with Pia.
What you need to know before crossposting
Instagram and TikTok have different technical requirements for content. But for most posts, the same file works on both:
- Square or vertical video (9:16) works natively on both platforms
- Single images post to Instagram Feed and TikTok
- Image carousels post to Instagram Carousel and TikTok Photo Mode
- Vertical video under 3 minutes works for Instagram Reels and TikTok
The main difference: TikTok posts are always single-file, while Instagram supports carousels and stories. Pia handles the platform-specific formatting automatically when you select the right placements.
How to do it in Pia
- Log in at trypia.app and connect both your Instagram and TikTok accounts
- Create a new post and upload your media (video, image, or carousel)
- Select both Instagram and TikTok as destinations
- Set the caption once. It syncs to both platforms
- Pick your schedule or post immediately
That’s it. Pia sends the content to both platforms at the same time. No re-uploading, no rewriting captions, no opening TikTok to check if the Instagram post went through.
What about platform-specific formatting?
If you want Instagram Stories alongside your Feed post, or you want a different placement on TikTok (standard post vs Photo Mode), Pia gives you per-platform placement controls. You can set:
- Instagram: Feed, Carousel, Reel, or Story
- TikTok: Standard or Photo Mode
Mix and match for the same piece of content. The caption you write once applies everywhere.
The cost of crossposting
On Pia, each post costs $0.02 per destination account. Posting to Instagram and TikTok at once costs $0.04 total. Posting to multiple Instagram accounts? $0.02 each.
Compare that to subscription tools where you pay a flat monthly fee whether you post 10 times or 100 times. Usage-based pricing means crossposting a few times per week costs pennies.
The bottom line
Posting to Instagram and TikTok at the same time takes one upload, one caption, one schedule. Everything else happens automatically.
Start free at trypia.app and get 30 free posts to try crossposting Instagram + TikTok without a subscription.