Kosta

Full-stack dev by day, solopreneur by night

Products

Onboardi
Never miss what confuses your users
$undefined/mo

Recent activity

Onboardi: 10 years in support taught me that user questions are your best product roadmap

“After 600+ founder conversations, 90% are building the wrong thing”

“After 600+ founder conversations, 90% are building the wrong thing”

Early-stage founders — what’s been harder so far: building or getting users?

Searchable Transcripts + Built-In Messaging — What's Working, What's Not

I built an AI that replaces recruiting agencies for SDR hiring. Here's why and what I've learned so far

**What shipped:**

Early-stage founders — what’s been harder so far: building or getting users?

I automated the most annoying part of shipping side projects

Onboarding leak testers needed — will you make it past Day 1?

Early-stage founders — what’s been harder so far: building or getting users?

5 Positioning Mistakes I See Founders Make Every Day

I went from 32 signups/week to 0. One headline change.

The Quiet Pain of Building Something Nobody Finds

14 merchants, $0 revenue, and a 33% same-day churn problem — ProfitHelm update

The practical way I improved signup → paid by 5.8x

The practical way I improved signup → paid by 5.8x

The practical way I improved signup → paid by 5.8x