Serg's profile on Product Hunt

About

Software engineer and minimalism fan. I build small, useful products. Now: Satori, an English grammar app I make with my wife Daria. I write the code, she makes the exercises: 1,800+ of them, all in real sentences. Also mine: Roveri, a riding journal for motorcyclists on iPhone, and Upsonar, website monitoring from 9 regions that also checks what your site depends on. Happy to chat about language learning, indie apps or motorcycles.

Links

roveri.app - a ride journal

satori.guru - the best English grammar trainer

upsonar.io - dependencies monitoring

Badges

Tastemaker

Gone streaking 10

Gone streaking

Gone streaking 5

Maker History

Satori1,800+ exercises to make English grammar second nature
Oct 2026
RoveriA riding journal for iPhone every ride, painted on a map
Aug 2026
upsonar.ioDon't let a CDN outage break your site silently
Dec 2025
Lumenator ProPeripheral monitoring for MacOS
Jun 2025

🎉

Joined Product HuntJune 13th, 2025

Forums

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28d ago

Satori - 1,800+ exercises to make English grammar second nature

English grammar practice in real sentences and short texts: 50+ topics from A2 to B2, from tenses and articles to modals and conditionals. Short explanations as you go, a level test, no account, no ads. Every topic is free; unlimited practice is paid.

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3mo ago

Roveri - A riding journal for iPhone every ride, painted on a map

One tap records the route, speed, elevation and the weather of every ride, painted on a map. Rides add up into seasons you can re-open — and an atlas of every road you've ever ridden. A journal, not a navigator. Free to start; iPhone, iOS 18.6+.

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11mo ago

upsonar.io - Don't let a CDN outage break your site silently

Most uptime monitors only ping your server. But modern websites depend on dozens of external resources - CDNs, analytics, fonts, scripts. When Cloudflare goes down, your homepage looks fine in your monitoring dashboard, but your users see a broken page.