Johnny Kartakov

Johnny Kartakov

Tech Founder | AI, Blockchain & SaaS

Badges

Tastemaker
Tastemaker
Gone streaking
Gone streaking

Maker History

  • ejendomsindex.dk
    ejendomsindex.dkFind and monitor property opportunities in Copenhagen
    Oct 2026
  • Sidera
    SideraYour birth chart, calendar, and AI astrologer in one app
    Oct 2026
  • Arsum
    ArsumAI automation and AI agents for B2B teams
    Jun 2026
  • 🎉
    Joined Product HuntJune 8th, 2026

Forums

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11d ago

Building Sidera: an astrology planner for choosing dates

Hi Product Hunt! I'm Johnny, founder at Arsum. We're building Sidera, a web and Android astrology planner that applies an electional astrology lens to choosing dates for activities.

One problem we're exploring is how to make timing information understandable without presenting it as a guarantee. Sidera combines a birth chart and daily insights with an activity calendar; the full Find Best Date comparison is part of Pro. The basic birth chart is free.

I'd love feedback from other makers: what helps you make a date-comparison interface clear without overwhelming a new user?

https://sideraai.com/

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11d ago

Sidera - Your birth chart, calendar, and AI astrologer in one app

Turn your birth chart into a calendar you can explore. Compare dates for specific activities, follow personal transits, and explore relationship compatibility. Ask an AI astrologer about a day, placement, or connection with the relevant chart context already included. Available on web and Android. Free to start, with optional Pro features.

ejendomsindex.dk - Find and monitor property opportunities in Copenhagen

Turn public Danish property data into a focused research shortlist. Search and rank commercial properties across Greater Copenhagen, inspect planning, building, environmental and ownership evidence, and explore linked companies and properties. Start free; Pro adds watchlists, change signals and 100 monthly research credits. Screening highlights opportunities and uncertainty—it does not replace due diligence.
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