
Buffer
Hootsuite
Ayrshare
Postproxy
Later
Postiz
Publer
Social Media API for developers. Post to TikTok, Instagram, YouTube, Facebook & 19 more platforms with one API call. MCP server for Claude/ChatGPT, white-label for SaaS. 70k+ users.
Instaaa
Submit Juice
Promotehour
Aidem Network
Hey Press
Howler AI
Press Notify
Find where to get press coverage for your startup

Which is more popular?
Based on our record, Submit.co seems to be more popular. It has been mentioned 3 times since March 2021.
Website, pricing, platforms and company facts side by side.
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S
Submit.co
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|---|---|---|
| Website | upload-post.com | submit.co |
| Pricing | — | |
| Platforms | — | |
| Company | Startup from Spain · 1 - 9 employees · 2025 | — |
| Listed in |
In their own words, as submitted to SaaSHub.

Upload-Post is a social media API that lets developers post to TikTok, Instagram, YouTube, Facebook, X (Twitter), LinkedIn, Pinterest, Threads and more with a single API call. Built for SaaS platforms, agencies, and developers who need reliable multi-platform publishing without managing...
No description of Submit.co yet.
What each product offers, as listed by its team.

Possible disadvantages
An editorial look at what each product does well and who it suits.

Overall verdict
Why this product is good
Recommended for
No analysis of Submit.co yet.
How often each product is chosen within a category, 0–100% relative to the other.

As answered by people managing Upload-Post and Submit.co.
Upload-Post's answer
Upload-Post is the only API that lets you post to 10+ social platforms with a single endpoint. No need to integrate TikTok, Instagram, YouTube, and Facebook APIs separately — one call handles everything. We also offer true white-label: your users connect their accounts directly, so you never touch their credentials.
Upload-Post's answer
Upload-Post's answer
Upload-Post's answer
We were building a SaaS and needed to post to multiple social platforms. Integrating each API separately was painful — different auth flows, formats, rate limits, and constant breaking changes. So we built Upload-Post to solve it once. Now thousands of developers use it to skip the headache and ship faster.
Share your experience with using Upload-Post and Submit.co. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

Tracking Upload-Post since Feb 2026.
Fun story: I built BetaList 16 years ago which was one of the first "product discovery" platforms. Years before Product Hunt, etc. I manually reviewed every submission and unfortunately often I had to tell founders that their startup... - Source: Hacker News / 4 months ago
First, I crawled and audited all the available data from similar lists. Startup directories, such as those found on GitHub and Submit.co websites are the few standing out in terms of quality. - Source: dev.to / almost 4 years ago
Very cool. Just submitted to submit.co. Source: over 5 years ago
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Free and curated list of startup directories to promote your new startup. We manually post your startup to more than 150+ relevant directories and blogs to help your startup get discovered.
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