Instagram scheduler for posts, Reels, carousels and Stories
UniPostudio is an Instagram scheduler for small businesses and agencies. You write once in one composer, and UniPostudio fits the post to Instagram’s rules: caption length, hashtag count, image shape and links. Then you place it on the calendar next to your other channels.
You need an Instagram professional account (business or creator) linked to a Facebook Page. That is Instagram’s requirement for publishing through its API, not ours.
What you can schedule on Instagram
- Feed posts: one image, or a single video, which Instagram publishes as a Reel.
- Carousels of 2 to 10 images or videos.
- Reels: vertical video up to 15 minutes, shared to your feed unless you turn that off, with an optional cover.
- Stories: one image or one video. Instagram does not show a caption on Stories, so none is sent.
Instagram’s rules, handled for you
The composer checks each post against Instagram’s limits before you schedule it, so a post does not fail at publish time.
- Captions up to 2,200 characters, counted correctly for scripts such as Arabic or Malayalam.
- No more than 30 hashtags.
- Feed images from 4:5 portrait to 1.91:1 landscape, kept at their shape rather than cropped square. Stories and Reels at 1080×1920 (9:16).
- Links are not clickable in Instagram captions. When the composer finds a URL, it adds “🔗 Link in bio” so followers know where to look.
- Alt text is sent with each image.
- Instagram allows 100 API-published posts per account in a rolling 24 hours. A carousel counts once.
Formats and limits
| Format | What it takes | Notes |
|---|---|---|
| Feed post | 1 image or 1 video | A single video goes out as a Reel |
| Carousel | 2–10 images or videos | Counts once towards the 24-hour limit |
| Reel | Vertical video up to 15 min | Shared to feed unless turned off; optional cover |
| Story | 1 image or 1 video | No caption is sent |
| Caption | 2,200 characters | Up to 30 hashtags; links not clickable |
How to schedule Instagram posts
- Connect: open Channels, choose Instagram and sign in with the Facebook account that manages your Page and professional account.
- Compose: add your images or video and write the post once. AI captions can draft it from a short brief.
- Fit the caption: open the Instagram tab of the composer to adjust hashtags or wording for Instagram only, without changing your other channels.
- Schedule: pick a time, or drag the post on the calendar (month, week, day or agenda view). Use approvals if someone needs to sign it off first.
Instagram comments and DMs in one inbox
Comments, mentions and direct messages from your connected account arrive in the social inbox, next to your other channels. AI replies draft an answer in your brand’s voice; you approve each one, or switch on automatic sending for Instagram.
Automatic replies to messages only go out inside Meta’s 24-hour window. Each one the agent sends by itself is disclosed as AI, in the customer’s language. Nothing old is answered automatically.
Instagram analytics
Analytics show what Instagram reports for each post. Meta removed impressions, so reach is shown as views. History is 90 days on Classic and Pro, and one year on Agency.
What it does not do yet
- No first-comment posting.
- No captions on Stories, because Instagram does not display them.
- Personal Instagram accounts cannot publish through the API; switch to a professional account first.
All ten channels are built into UniPostudio. Some open in your account as each platform completes its app review; the Channels screen shows which ones you can connect today.
Pricing
Every channel is on every plan, with no per-channel or per-seat charge. Plans start at €9, $9 or ₹499 a month for Classic; Pro is €29 and Agency €49. Every new account starts with a 30-day Classic trial, no card. Compare plans on pricing.
Frequently asked questions
Can I schedule Instagram Reels?
Yes. Upload a vertical video of up to 15 minutes. It is shared to your feed unless you turn that off, and you can choose a cover.
Can I schedule Instagram Stories?
Yes, one image or one video per Story. Instagram does not show captions on Stories, so UniPostudio does not send one.
Do I need a business account?
You need an Instagram professional account, business or creator, linked to a Facebook Page. Instagram only allows these to publish through its API.
Why does my caption end with “Link in bio”?
Instagram does not make links in captions clickable. When the composer finds a URL, it adds “🔗 Link in bio” so people know where to find it. You can edit the Instagram caption before you schedule.
Is there a limit on how many posts I can schedule?
Posts are unlimited on every plan. Instagram itself allows 100 API-published posts per account in a rolling 24 hours, and a carousel counts once.
Related pages
Schedule your Instagram posts
30 days free, no card. All ten channels on every plan, from €9 a month.