Creators

Martin Kool

Q42

@mrtnkl @q42 2,424 X followersq42.nl First product launched 12y ago

Total monthly visits
499.4K
Down9.4%MoMOct 2026LessonUp accounts for 88%
Public revenue
Undisclosed
No public revenue across products
Products
4
Since Nov 2014
Latest launch
6y ago
LessonUp438.3K visits/mo
100% full-depth creator dossier open: complete product portfolio, 12-month combined traffic & MRR curves, shipping cadence, and timeline events.

Traffic

Portfolio · Last 12 months
Monthly visitsLog scale

Products

Products and research metrics
ProductVisits · OctActions
LessonUpMake learning engaging: Teach with LessonUp438.3K
0h h1Oh hi59.2K
0h n0It's 0h h1's companion! By Q42.<5K
ContranoidThe chaotic two-player telephone game from 1897!<5K

Timeline

Launches, marketing, revenue milestones, and pricing/plan/positioning changes across products

  1. Nov 1 · 15d ago

    • LessonUp Adopted technology: CloudflareFeatures

      —→Cloudflare

    • LessonUp Removed technology: GoDaddyFeatures

      GoDaddy→—

  2. Apr 28, 2020 · 6y ago

  3. Aug 31, 2015 · 11y ago

  4. Apr 5, 2015 · 11y ago

    • 0h n0 launchedNew product

Questions & evidence

What products has Martin Kool built?
Martin Kool tracks 4 standalone software products on EarlyLore (4 currently live), led by LessonUp, 0h h1, 0h n0.
How much website traffic do Martin Kool's products get?
Across tracked standalone domains with web traffic estimates, Martin Kool's portfolio reaches 499.4K combined monthly visits in each site's latest observed month. Coverage excludes shared third-party hosts and store listings.

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