About PassiveKit

Built by someone who is actually doing it

I am a Head of Marketing at an automotive company by day. On evenings and weekends I run two affiliate content sites, two YouTube channels, and sell digital products.

PassiveKit exists because most tool recommendation sites are written by people who have never actually built a side income alongside a full-time job. They recommend whatever pays the highest affiliate commission – not whatever actually works when you have 8 to 12 hours per week.

Every tool reviewed on PassiveKit has been personally tested. Scores are honest. If a tool is overpriced or underdelivers, I say so – even if it pays a high commission.

The Three Rules

  • No sponsored content – ever. Tools cannot pay to be featured or ranked higher.
  • Affiliate links are always disclosed. You know when I earn a commission.
  • Every tool is personally tested before it is reviewed or recommended.

What PassiveKit covers

Email marketing tools (Kit, Beehiiv, Mailchimp), digital product platforms (Gumroad, Lemonsqueezy, Teachable), productivity tools for solopreneurs (Notion, Canva, Obsidian), and the complete tool stack for building passive income alongside a full-time job.

15 years of digital marketing

My background includes Head of Marketing roles in the automotive sector and prior experience at consumer electronics and retail companies across the Netherlands. I have managed large marketing budgets, built CRM systems, run SEO and paid media, and built D2C e-commerce from scratch.

That experience informs every review on this site. I know what tools actually deliver results under pressure and which ones look good in demos but fall apart in practice.

Questions? Reach out via the contact page. Affiliate enquiries, sponsored content requests, and link insertion pitches are declined.