SunTzu

SunTzu

Solo developer building CertOwl
#1009928411 followers0 following
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About

Solo developer building study apps that turn big scary exams into five-minute daily habits. CertOwl covers CompTIA certifications (A+, Network+, Security+, CySA+ and PenTest+). H1 Owl covers Leaving Cert Maths in Ireland. Both run on the same idea: consistency beats cramming. Free tiers in both, everything works offline, no gimmicks.

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Maker History

  • CertOwl
    CertOwlFive-minute daily prep for CompTIA A+, Network+, Security+
    Aug 2026
    • 🎉
    Joined Product HuntAugust 4th, 2026

Forums

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2mo ago

CertOwl: CompTIA prep as a five-minute daily habit. A+ and Network+ tracks completely free

Hey PH! I'm SunTzu, solo developer behind CertOwl.

CertOwl turns CompTIA exam prep (A+, Network+, Security+, CySA+, PenTest+) into a five-minute daily habit: 3,400+ original practice questions with every answer explained, spaced repetition flashcards, and full exam simulations with an indicative score so you know when you are ready to book. Six languages, works offline.

The complete A+ and Network+ tracks are free: no card, no trial clock.

Web: https://certowl.app

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2mo ago

Hi PH! Solo dev who built the study app he couldn't find in his own language

I'm SunTzu, a solo developer.

Two things nearly stopped me when I started studying for IT certifications. First: every decent study resource assumes English is your first language. Mine isn't. Subnetting is hard enough without translating it in your head at the same time. Second: the real skill these exams test is not intelligence, it is showing up every single day, and nothing I found was built for that.

So I built the tool I kept wishing existed: CertOwl, five-minute daily lessons for the CompTIA exams, spaced repetition flashcards, and full exam simulations, in six languages, working fully offline. I made the complete A+ and Network+ tracks free, because that is where everyone starts and where most people give up.

It launches here on Product Hunt tomorrow morning, which for a one-person team is equal parts exciting and terrifying.

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1mo ago

CertOwl - Five-minute daily prep for CompTIA A+, Network+, Security+

CertOwl breaks CompTIA prep into five-minute daily lessons: 3,400+ original practice questions with every answer explained, spaced repetition flashcards and full exam simulations with an indicative score. The A+ and Network+ tracks are completely free.
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