Wavegrain vs PostNitro: two AI carousel makers, compared
Updated 26 October 2026. PostNitro facts checked on its website on 26 October 2026.
Wavegrain makes this page, and Wavegrain is our product. We read every fact about the other tool on its own website on the date shown, and link to the page. Prices and features change, so check their site before you decide. If something here is wrong, email [email protected] and we will fix it.
Side by side
| Wavegrain | PostNitro | |
|---|---|---|
| What it is | An AI maker for Instagram carousels and TikTok photo slideshows, for creators and small brands. About | An AI carousel maker that designs and schedules posts. postnitro.ai |
| Makes the slides | Yes. From a topic it writes the script, places your photos or makes AI images, and lays out every slide in an editor. Board to carousel | Yes, with AI and 100+ templates. postnitro.ai |
| TikTok photo posts | Makes 1080x1920 slides and an MP4. You post them yourself; direct sending turns on after TikTok's review. Home page FAQ | Vertical 1080x1920 photo carousels, published from Creator+; 5 to 20 slides by plan. postnitro.ai |
| Other networks | Exports a ZIP of PNG slides or an MP4 for any network. Direct sending turns on one network at a time. Home page FAQ | LinkedIn, Instagram, Threads, Facebook and Pinterest. postnitro.ai |
| Paid plans | Starter $29, Pro $49, Agency $89 a month. Pricing | Starter $15, Creator+ $30, Team+ $60 a month. postnitro.ai |
| Free plan or trial | A 3-day free trial with 10 credits. Pricing | A free plan with a watermark, and a 3-day trial of paid plans. postnitro.ai |
| AI agents | An MCP server for Claude Code, Codex, Cursor and other MCP clients, with no separate price. MCP server docs | An MCP server with 35 tools, CLI and API, as a $10 a month add-on or in Plus plans. postnitro.ai |
| Exports | A ZIP of PNG slides or an MP4. | PNG per slide, PDF and MP4. postnitro.ai |
PostNitro column: read on its own website on 26 October 2026; each cell links to its page. Wavegrain column: from this site and the app on the same day.
Where PostNitro wins
- LinkedIn PDF carousels and text-led carousels, with 100+ templates.
- A free plan to start, and publishing to six networks.
- Many ways in: a topic, an article link or a post.
Where Wavegrain wins
- You can build slides from your own photo collection. Wavegrain adds AI images only where you choose Collection + AI.
- Your AI can copy the look of a slideshow you like and make a new one in it, through tailored slideshows.
- Every slide stays editable, and a scheduled post waits for your approval before it is sent.
What Wavegrain does not do
- Wavegrain plans, makes and schedules your slideshows on a Calendar. Automatic posting to connected networks turns on one network at a time, as each passes its developer review. Until then, export each post as a carousel, square, vertical, ZIP or video and post it where you already work.
- It does not post anything you have not approved, and it does not run accounts on autopilot.
Which one to pick
Pick PostNitro if
You post mostly on LinkedIn, or want text-led carousels from templates with a free plan.
Pick Wavegrain if
You post photo-led TikTok slideshows and Instagram carousels from your own photos.
Questions
Is Wavegrain a PostNitro alternative?
Yes, both make carousels with AI. PostNitro is stronger for LinkedIn and text-led carousels; Wavegrain is built for photo-led TikTok slideshows and Instagram carousels.
How many slides can a TikTok carousel have in PostNitro?
On 26 October 2026 its TikTok page listed 5 slides on Free, 8 on Starter, 15 on Creator+ and 20 on Team+. TikTok itself allows up to 35 images. Wavegrain makes 3 to 10 slides per slideshow.
How much does PostNitro cost?
On 26 October 2026 its pricing page listed a free plan, Starter at $15, Creator+ at $30 and Team+ at $60 a month, with a 3-day trial of paid plans.
Do both have an MCP server?
Yes. PostNitro's has 35 tools and is a $10 a month add-on or part of its Plus plans. Wavegrain's MCP server uses your normal credits, with no separate price.
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