ABOUT
Built by one developer,
for everyone.
TipCalc Pro is a passion project — crafted with care by a solo developer who believes great tools should be simple, beautiful, and respectful of your time.
THE STORY
From idea to reality.
Hi, I'm Serge. The idea for TipCalc Pro lived in my head and in some wireframe concepts for years — one of those "someone should build this" thoughts that never quite went away. I kept imagining a tip calculator that actually felt good to use: fast, thoughtful, and designed with the same care Apple puts into its own apps. Eventually, I stopped waiting for someone else to build it and decided to build what I wished existed.
Building TipCalc Pro has been a journey of rediscovery. After stepping away from iOS development, coming back to it felt like reuniting with an old friend — except now, the tools are extraordinary. SwiftUI has matured beautifully, and I've been experimenting with Apple's new Liquid Glass design language, pushing the boundaries of what a utility app can look and feel like.
"Make something people want."
— Paul Graham
What makes this moment special is the convergence of passion and possibility. I'm using the latest LLM coding models as a development partner — accelerating the craft. They help me move faster, explore more ideas, and stay in flow. It's a new way of building software, and it's incredibly exciting.
TipCalc Pro is proof that one person, building with genuine passion and the right tools, can create something that stands alongside the best. No team of dozens, no venture funding — just curiosity, care, and a refusal to ship anything less than great.
"For those of you with an idea and thinking about getting started, the tools are finally good enough. Go build it."
— Serge Derby
VALUES
What matters.
The principles behind every decision in TipCalc Pro.
Privacy First
No ads. No ad tracking. Your calculations stay on your device. This site uses minimal, consent-based analytics — the app itself collects none.
Crafted with Care
Every detail is considered — from fluid animations to pixel-perfect layouts. Built for delight, not just function. Because tools should feel as good as they work.
Ready to tip smarter?
A clean, focused tip calculator built for iPhone.