Postprism schedules your Instagram content at high-engagement hours and crafts captions with the hook-driven structure that the Explore algorithm rewards — so your posts reach beyond your existing followers.
15-day money-back guarantee.
Postprism adapts your content to Instagram's format, timing, and audience expectations automatically.
AI caption writing for Instagram's hook-first style
Postprism's AI writes Instagram captions that front-load the hook in the first 125 characters, before the "more" truncation. The AI follows Instagram's conversational tone — shorter sentences, line breaks, and a clear call to action.
Optimal posting time selection
Postprism schedules your posts for your audience's peak active hours based on time zone. You can override with a specific time or let Postprism auto-select based on standard engagement research.
Hashtag and caption character tracking
The Postprism editor counts your caption characters and hashtags in real time, warning you before you exceed Instagram's 2,200-character caption limit or 30-hashtag maximum.
Multi-platform publishing from a single draft
Write one piece of content in Postprism and publish an Instagram-adapted version alongside LinkedIn, Twitter/X, and Facebook variants simultaneously — each following the platform's specific style.
Caption
2,200 charactersFeed captions are truncated after 125 characters with a "more" prompt. The first sentence must stand on its own to drive click-to-expand.
Bio
150 charactersThe only clickable link on Instagram for most accounts. Treat it as prime real estate.
Stories text overlay
300 charactersStories are full-screen and ephemeral (24 hours). Text overlays should be short and readable at a glance.
Hashtags per post
30 hashtags maximumResearch suggests 3–10 highly relevant hashtags outperform 30 generic ones. Instagram has confirmed that hashtag reach is no longer the primary distribution mechanism.
Monday through Friday, 9:00–11:00 AM in your audience's local time — morning scroll before work begins
Monday through Friday, 2:00–3:00 PM — afternoon lull when mobile usage spikes
Tuesday and Wednesday show consistently higher engagement than other weekdays for most niches
Saturday 9:00–11:00 AM can outperform weekdays for lifestyle, food, and consumer brands
Instagram's Explore algorithm evaluates content based on engagement rate relative to reach — not raw follower count. A small account with high engagement per post can reach millions through Explore.
Reels receive preferential distribution across Instagram's surfaces including the Reels tab, Explore, and home feed. Instagram has publicly stated it deprioritizes non-Reel video content.
Save rate is one of the most powerful signals in Instagram's algorithm. Content that people want to reference later — tutorials, tips, recipes — should be optimized for saves, not just likes.
Hashtags provide secondary indexing but are no longer the primary discovery mechanism. Location tags and in-caption keyword signals now play a larger role in search distribution.
Stories activity (polls, questions, replies) signals audience engagement to the main feed algorithm. Accounts with active story engagement tend to see better feed distribution as a result.
Feed photo post
Single or multiple images (up to 10 in a carousel). Carousels outperform single-image posts because Instagram shows them multiple times to the same user — once per slide.
Reel
Vertical video up to 90 seconds. The primary growth format on Instagram in 2024–2025. Receives the most algorithmic distribution of any content type.
Carousel
Up to 10 slides combining images and video. High save rates and swipe-through rates make carousels the best-performing educational content format on Instagram.
Story
Ephemeral vertical content visible for 24 hours. Stories drive direct engagement — DMs, replies, poll responses — and strengthen audience relationships.
Broadcast channel
One-to-many messaging feature. Brands use broadcast channels to share exclusive content and drive high-intent followers to take action.
Every plan includes multi-platform support and a content calendar.
Creator
For solo creators who post consistently across platforms.
1 workspace
All 7 platforms
100 scheduled posts per month
AI content adaptation
Content calendar
Basic analytics
Pro
For marketers who need AI, analytics, and volume.
3 workspaces
All 7 platforms
Unlimited scheduled posts
AI content adaptation
Brand voice training
Bulk scheduling
Advanced analytics
Team
For agencies and teams managing multiple brands.
10 workspaces
All 7 platforms
Unlimited scheduled posts
AI content adaptation
Brand voice per workspace
Team collaboration
Priority support
Schedule your Instagram posts at peak times. Postprism handles the timing so you can focus on content.