ServerWind

Product notes from the engine room

Alexandr Petrov · No. 01

Index · Writing

Notes on pricing, paywalls and the work nobody photographs.

Everything here comes from one product, with the numbers and the mistakes left in. No frameworks, no summaries of other people’s posts.

All posts

6 published
Nov 2026

One of the Often-Forgotten Things in SaaS: What Happens After Payment

You track traffic, funnels, and conversions. But do you know what happens after someone pays?

5 min · Essay · SaaS
Oct 2026

A product bet that sold zero

A PSC inspection guide for gas carriers. I said the niche was too narrow to carry development costs; the go/no-go was not mine.

3 min · Case study · Discovery
Oct 2026

From $100 to $2,171 a month

A product the owner was about to close, a business model rebuilt from free content to freemium, and the free tier that decides whether anyone pays.

5 min · Case study · Monetization
Oct 2026

Pricing experiments: the $1/day failure and the 5 → 3 reset

A micro-plan that died on payment fees, and the two plans I deleted because nobody bought them.

3 min · Case study · Pricing
Oct 2026

An app in three weeks, and the distribution problem behind it

A focused Android MVP shipped without Google Play. Building it was the easy part.

3 min · Case study · Technical