Paweł Karniej ,
founder of Silpho
One founder. 25+ apps shipped. Productized 4-week launches for founders who want a revenue-ready product, not a Figma file compiled into React Native.
What I do
I run Silpho, a one-founder productized studio that ships revenue-ready iOS and Android apps in 4 weeks for $1,999 to $7,999. No hourly billing, no PM layer, no account managers. You get the founder on every call. I built the Ship React Native boilerplate that powers every Silpho launch and now sells separately at $199.
What I have shipped
25+ apps to the App Store: Coldsmith (wellness), AIVidly (AI video), VidNotes (transcription), Newsletterytics (analytics), FIFTN, plus 20+ AI-utility apps including PalmSeer, PillSnap, SnakeID, FontLens, GemSnap, and more. Real revenue, real users, real Apple Search Ads campaigns. I have made every mistake, paywall race conditions, AI cost runaways, App Store rejections, and fixed them once so my clients do not pay to learn them again.
Why productized
Most mobile-app agencies bill hourly, run open scope, and ship in 4 to 6 months for $50k+. That model loses money for founders unless they have already validated demand. I went productized because the same outcome, revenue-ready iOS app with paywalls, analytics, AI features, and a real launch, is achievable in 4 weeks for under $5k if you reuse a battle-tested stack and lock scope. Silpho is the result.
Why the 4-week refund guarantee
If I am going to charge a fixed fee for a fixed scope, I should put my money where my mouth is. Every Silpho sprint comes with a 4-Week Ready-to-Ship Guarantee: if your app is not built, tested, and submitted to the App Store within 4 weeks, you get a full refund and you keep the code. In 25+ launches I have not missed this deadline. The guarantee is the operational discipline forcing function.
A few of the apps I've shipped
Each one shipped on the same Ship React Native stack that powers every Silpho client launch.
Newsletterytics
Beehiiv newsletter analytics on the go.
Aividly
AI video, image and voiceover creator.
Coldsmith
Cold plunge and ice bath timer with Wim Hof breathwork.
ReWordly
AI rewrite, humanize, detect, and polish text.
Fishify
AI fish ID, catch log, and fishing rules guide.
Checklyy Check Writer
Write, print, export, and track personal checks.
Where else I write and ship
Want to ship yours next?
4-week ready-to-ship guarantee. Or full refund, you keep the code. From $1,999 iOS.