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The Growth Stack Mafia newsletter by Austin Hay: latest issues, cadence and price

by Austin Hay · Substack · Paid · monthly · last issue Aug 8, 2026 · Paused

Growth systems, playbooks, and practical advice for technical operators, founders, and leaders.

20 issues on file since Oct 16, 2025; every one is in its own archive ↗.

About this newsletter

Photo

None found, so the logo or initials show. Photos come from Wikimedia Commons or official company pages, never LinkedIn or image search.

Free or paid

Paid on Substack. 100% of its latest 12 issues are for paying subscribers (from its public archive, checked weekly).

Issues per week, last 26 weeks

monthly, measured over the last six months (or since the feed's oldest issue)

Writes about

AI and agents (5) in the last six months.

History

Free or paid

Now paid only, was free to read.

Name

Renamed from “The Growth Stack Mafia 🥞⚔”.