About Weissgerber
I'm Antonin Weissgerber, an independent developer building digital products that respect your privacy and your time.
Philosophy
I like software that does its job clearly and then gets out of the way. Most of my products start with one specific annoyance, so I try not to turn them into something larger than the problem requires.
Privacy first
Your data is yours. I don't collect unnecessary analytics, track behavior across apps, or sync information to the cloud unless you explicitly choose to. Most products run entirely offline or with minimal network dependencies.
Simplicity over features
I resist adding every possible feature. Each product does one thing well rather than many things adequately, which keeps it fast, reliable, and easy to use.
Sustainable pricing
No dark patterns, no attention-hijacking notifications. Products are either free or offer a one-time purchase for lifetime access. A recurring subscription only appears when that's genuinely the better model.
Quality and craft
Each product is built solo, taking the time to get the details right: performance, accessibility, and a smooth, thoughtful experience.
Background
I've spent several years making iOS apps and web tools for productivity, travel, fitness, investment research and sales operations. The products come from problems I have had myself, or conversations with people who were trying to do something the hard way.
That might mean planning revision, keeping track of spending abroad, deciding what to train today, making company research less scattered, or keeping an outsourced sales team on track. The subject changes, but I keep coming back to the same idea: make the next step easier to see.
How I work
I build the products myself, from the first sketch through to the version people use. When a product makes a meaningful claim about how it works, I try to explain the method and its limits plainly. MoatCheck's methodology, for example, describes the public data it uses, how its research framework is structured, and why it is not investment advice.
Most of my work is private. MoatCheck is the exception: its source code is available on GitHub for anyone who wants to understand how the tool is put together.
Products
iOS Apps
Vitae for study planning, TravelBudget for travel expenses, and Forma for recovery-based workouts.
I also take on a small number of private projects, usually internal tools for teams. There is a general overview of that work on the private work page.
Get in touch
Questions about a product, a bug report, or feedback? I'd like to hear it.