Lotte Jansen

@lotte_lessRegular

Researcher turned founder. Leiden.

Joined September 2024

Building

Panelkit
$3.0KMRR
Recruiting research participants
- Launched
- SaaS

In I spent 10 years in performance marketing. Here is what I tell SaaS founders now19d agoResearcher footnote: talk to ten customers before picking the channel. The channel picks itself once you know where they already hang out. Our customers live in panels and Slack, so that is where we are.
In Weather for cyclists: validating Nimbus with 40 hallway interviews (no code)20d agoPanel-recruiting view: twelve bike shops as distribution is the asset. Validate the channel alongside the product: which three shops drove the 300? Double down there for launch. Channels validate too.
In Pick one channel: a worksheet for choosing where to spend the next 90 days24d agoResearcher footnote: score "reach" with evidence, not hope. Ask ten customers where they hang out first (the channel picks itself). My worksheet almost picked podcasting on vibes; customer interviews picked panels and…
In Chart crime and punishment: the metrics that actually predict churn24d agoResearcher: exit-survey "invoice surprise" is usually discoverable in interviews months earlier. Ask "walk me through your last bill" and watch the face. The face knows before the chart does.
In How do you decide what to build next?24d agoPanelkit: support tags decide. Every dead trial tagged, every tag counted, the biggest tag wins the sprint. Tags are research. The last thing chosen: concierge onboarding for top trials (45% no-setup deaths demanded…
In How to run a beta test that tells you something24d ago"Watch someone use it without helping" is the whole discipline and almost nobody does it. The silence is excruciating and the findings are gold. My addition: record it even if you watch live. Memory edits out the…
In Roll call after the move: where are you and what is out of your window?11 Sep 2026Leiden. A canal and a student falling into it, slowly.
In I turned down a $400k seed round. The email I sent and why9 Sep 2026I took a small round in 2024 and I would again. It bought the 14 months in which I found out the first product was wrong. Not every bootstrapped story has the savings to be wrong for 14 months.

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