Leon Jakob Kastelic

Leon Jakob Kastelic

Marketing, media & digital experiences.
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About

Currently working on growing Optibase - an A/B testing and experimentation platform for teams that want to stop guessing and start making decisions based on real user behavior. Outside of that, I work across marketing, digital media and online projects - mainly focues on: • building and growing social media pages • experimenting with content and distribution • improving landing pages and funnels • learning what actually drives clicks, conversions and attention Interested in what works in practice, not just in theory.

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Contralp/contralDevansh Ranjan•

4d ago

1 month since launch on ProductHunt

One month ago we launched Contral on Product Hunt and hit #1 Product of the Week. Here's what happened since.

500+ developers downloaded the beta. We didn't expect that number this early honestly. The feedback has been wild, some stuff we expected people to love (the teaching layer) and some stuff we didn't expect at all (Defense Mode became the most talked about feature by far, people genuinely love being quizzed on their own code which was surprising).

We started conversations with a few universities about running Contral as a pilot in their CS programs. The idea of students learning to code inside an actual IDE instead of switching between a tutorial and an editor resonated hard with the professors we spoke to. Nothing signed yet but the conversations are real and moving.

Bug reports have been humbling. Our early users don't hold back and thats exactly what we needed. We've shipped fixes almost daily since launch based on real user feedback. The product today is genuinely better than what we launched with a month ago.

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