Stefan van der Vlag

I build software that does 1 thing really well.

Hey! I'm Stefan, I build apps and wrote a book 👋

Every app I make does 1 job properly, without the bloat. The book is everything I know about starting an AI agency.

See my apps Read my book
Stefan van der Vlag

The apps

Clepher

Live

AI chatbots for websites, Messenger, Instagram and WhatsApp.

Build chat flows, capture leads and sell inside the DMs. The platform I started it all with.

Visit clepher.com →

CommentWard

Live

Every comment, on every platform, in 1 inbox.

Facebook, Instagram, Threads, TikTok and YouTube. Spam caught automatically, replies written by AI you control.

Visit commentward.com →

ReviewComet

Live

More 5-star reviews. Every review answered.

Ask every customer by email, SMS, WhatsApp or QR code, then answer each review with AI in your brand voice.

Visit reviewcomet.com →

Robofono

Coming soon

An AI receptionist that answers every call.

Your phone line, picked up 24/7. Questions answered, appointments booked, no call ever missed.

Visit robofono.com →

The book

The AI Agency Method book cover
Rated 4.8 by 411 people

The AI Agency Method.

Everything I know about starting and growing an AI agency, written down as 1 clear system you can follow.

Get the book for $17
Marcus Rivera
Marcus RiveraUnited States
"$100,000 ARR in 67 days!" No entrepreneurial experience. I chose finance as my niche and hit $100,000 ARR in 67 days with my AI offer.

About me

Stefan van der Vlag waving

Small tools, built properly. I've built software for marketers for years. Clepher taught me what most people want: not a giant platform, just their 1 problem gone. So every app I make does 1 job, on the same solid foundation.

Today that's 4 apps: Clepher for chatbots, CommentWard for comments, ReviewComet for reviews, and Robofono, the AI receptionist I'm building now.

When I'm not building, I teach people how to start their own AI agency. Everything I know about it went into my book, The AI Agency Method.

On the blog I write about what makes people buy, starting with a 15-part series on my own checkout page. I live in the Netherlands with my family.

From the blog

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