Founder, PostPost.ai
Mikhail Khomutetckii is the founder of PostPost.ai and the co-founder of Turbologo, an AI logo maker for small businesses. He is an engineer by trade: a Ruby and Java developer who wrote the first version of Turbologo himself and still ships the code behind PostPost.ai.
He has been building brand tools since 2018 for the people who run their own marketing, and that is what he writes about here. What each network actually allows, what the platform documentation really says, and where the tools in between get it wrong. He lives in London.
Export at 1080 × 1920 pixels, 9:16, MP4 with H.264 video and AAC audio at 30 frames a second, and keep it under 10 minutes. That one line is most of what anyone needs. The rest of this page is the...
September 4, 2026 · 11 min read
The four numbers most people came for: profile banner 1584 × 396, Company Page cover 1512 × 256, square post 1080 × 1080, link preview 1200 × 627. Everything else is below, grouped by where the...
September 3, 2026 · 16 min read
Sprout Social charges per seat. That one fact decides whether it is worth keeping: at $199 a seat, three people who need the shared inbox cost $597 a month, and the third person costs the same as...
August 31, 2026 · 25 min read
Every tool in this article can put a post on Instagram at 9am on Thursday. That problem was solved years ago. The reason people leave Buffer is that it charges per channel, and the tier that lets a...
August 28, 2026 · 20 min read
An Instagram carousel holds up to 20 photos and videos when you post from the app. Through any scheduling tool the limit is 10 — ours included. Here is where each cap comes from.
August 26, 2026 · 8 min read
A Reel can be 3 seconds at the shortest and 3 minutes at the longest if you post it from the Instagram app. If you post it through the API — which is what every scheduling tool does, including ours...
August 21, 2026 · 8 min read
Our own social media was eating most of a working day every week. ChatGPT did the fun 20 percent and left the rest. So we built the thing we wanted: an AI that learns your brand first, then makes the week.
August 19, 2026 · 6 min read
