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Gozapp
Gozapp

We build things we want to use.

Gozapp is our family company. Just the two of us, making apps we care about.

smart × Hello #: a handshake in front of a smart #5 on the smart stand
News ·

Hello # creator Clément Gonzalvez joins smart Europe

smart Europe has appointed Clément as Principal, Mobile Experience. He built Hello # independently, with the smart community, and now brings that experience to the official Hello smart app.

Read the announcement
Projects

What we’ve shipped.

Two apps we love. People use them every day.

iOS · Android 2024

Hello #

The companion app for smart # electric cars.

Digital Key, charging, preconditioning, widgets, Apple Watch and Wear OS, CarPlay, Siri Shortcuts and more. Version 3.0 brings a new look you can arrange your way. Lightweight and reliable, with no servers of our own in between.

4.9 · 300+ ratings

Web 2026

Living the Grid

A pixel-art helper for Tomodachi Life players.

Drop in any image. The tool tells you exactly which in-game colours to paint, and in what order, to recreate it inside the game. Runs in your browser.

Featured on Polygon, GameSpot, and GoNintendo

How we work

A few things we care about.

We care about how things feel to use, and how solid they are underneath.

Privacy by design

No trackers, no analytics, no accounts unless we have to. Your data stays on your device.

Independent

Just the two of us. No investors, no roadmap pressure.

We listen

Send us an email. We read it, we reply, we fix things. Nothing sits for months.

Small on purpose

We’re staying small. Two people, a few projects, time to get things right.

Who we are

Two engineers, one family.

We sit on opposite ends of the stack and meet in the middle. One of us on the front end, the other on the cloud. We’ve been writing software together for years.

Clément Gonzalvez

Clément Gonzalvez

Co-founder

Principal, Mobile Experience at smart Europe

Lives on the front end. Interfaces, interactions, and the small details that make an app feel good to use.

LinkedIn →
Christian Gonzalvez

Christian Gonzalvez

Co-founder

Cloud & Site Reliability Engineering expert

Owns the parts you don’t see. Cloud, infrastructure, security, architecture. The reason things stay up.

LinkedIn →
Tip jar

Say thanks with a coffee.

If the apps have been useful and you want to say thanks, this is one way. Totally optional.

Buy us a coffee Or tip directly from the Hello # app.
Get in touch

Drop us a line.

We read everything. Feature requests, bugs, ideas, or just saying hi. Usually a reply within a day or two.