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Mobileapps
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Bosman
Splitka
 
 
 
 
 
 
 
 
 
 
Bosman app
portfolio

Beautiful interfaces are the bare minimum today. The real value of a mobile app lies in its ability to solve users’ real problems.

My work

Bosman
Splitka — case study
Web apps →

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In short

I design apps that don’t just catch the eye, but that people simply want to use every day.

In my projects I focus on logical information architecture and seamless UX, cutting out cognitive noise and shortening the path to the goal. I don’t just build software — I design smooth processes where technology quietly does the heavy lifting in the background, leaving a clean, intuitive interface up front.

Bosman: weather model chartBosman: wind and gusts from two sources
01Bosman

The perfect weather app sounds good?

Why did I build Bosman?
Checking the forecast before casting off is standard practice for sailors. Even the most popular apps rely on a single mathematical model, which often misses local micro-phenomena. For safety, you need to cross-check data from independent sources — which until now meant using several apps. Put simply: with Bosman you get 4 apps in one, and we’re only getting started.

The technology that powers it

  • Under the hoodA mobile app built where three worlds meet: engineering-grade backend precision, smart n8n automation and modern 'vibe coding’.
  • UX/UINot just software — smooth processes where technology quietly does the heavy lifting in the background, leaving a clean, intuitive interface up front.
  • AutomationSmart automation that hides the technical complexity and gives users clean, simple functionality.
  • FirebaseA secure, fast backend built on Firebase, with instant real-time data sync.
  • Vibe coding & AIDesigned in the spirit of vibe coding, with AI supporting the creation of a clean, modern UX/UI.
02Splitka · case study

Split costs, not friendships.

A mobile app (PWA) for splitting shared household expenses. Add a receipt in three taps — it keeps track of balances and tells you who owes whom.

1Add an expensekeypad, category, who paid
2Balances update themselvesgreen = to get back, red = to pay back
3Settle upfewest possible transfers
Splitka: home screenHome
Splitka: adding an expenseAdd
Splitka: analyticsAnalytics
Splitka: fixed costsFixed costs
Splitka: settingsSettings
splitka.ffrydrychowski.pl
Splitka on desktop: home screenSplitka on desktop: analytics
On desktop

Same product, full layout.

The app isn’t just “a phone in the middle of the screen”. Above 1024 px it switches to side navigation, a two-column dashboard and larger type — a dedicated view, not a stretched mock-up.

~4,51 €per month for all hosting
< 3taps to add an expense
8collections in the database
50–100 MBRAM on the backend
June 2026in production, in daily use

Contact

Questions about a project or a quote? You can reach me by phone and email, or use the quick form next to this — I’ll get back to you as soon as I can.

Emailfrydrychowski.fr@gmail.com→ Call505 858 034→


© 2026 Franciszek Frydrychowski. All rights reserved.