# I built a mutual SNS marketing platform — here's what I learned

> Source: <https://dev.to/jerry_hoo_df69638072c5ced/i-built-a-mutual-sns-marketing-platform-heres-what-i-learned-2kn0>
> Published: 2026-05-20 09:20:08+00:00

Running paid ads is expensive. Most indie hackers and small
startups can't afford $5k/month on Facebook or Google ads.
So I started thinking — what if we just helped each other?
A platform where:
AI automatically writes 17 promotional posts for every
channel — Instagram, YouTube, TikTok, X, Facebook,
Naver Blog, Threads. Images auto-resized for every platform.
Getting the first users is hard. Really hard.
Cold emails get ~30% open rate but low conversion.
The concept of "mutual marketing" is new to most people.
Trust is the biggest barrier — "will anyone actually promote me?"
Still looking for the first 10 real users to test this.
Would love your feedback:
Live at mafull.com — free to start.