The idea
The scope is written down before anything starts: what is included, what is not.
Availableright now
Your mobile app, from the idea to the release on the stores
I design and build mobile applications for iOS and Android, API and database included. One person, from the first screen to the store listing.
- iOS & Android
- API & database
- Store releases
- Remote EN & FR
My method
Four steps, and the last one is the one that counts
Most mobile developers stop at the build. Releasing (signing, certificates, review) is where projects get stuck. That is the step I see through.
The design
Flows, screens and data model, approved before the first line of code.
The build
The iOS and Android app, the API and the database behind it. Continuous delivery.
The stores
Signing, submission, review, then version follow-up.
About
Hi, I'm Pierre
I design and build mobile applications for iOS and Android, from the idea to the app being downloadable on the App Store and Google Play.
That covers everything: the app, the API and the database behind it, deployment, and releasing on the stores (signing, certificates, review). A lot of React Native work stops at the build; mine stops when it runs on a user's phone.
I graduated from EPITECH Marseille, master's degree, qualified as an expert in information technology. My first professional experience dates back to July 2021, already on mobile, and it has been the common thread ever since: five years of experience, including nearly three years at Dev-id. Internship, then freelance, then full-time, with a Product Proxy Owner role along the way.
So freelancing is nothing new: I was already doing it in 2023, alongside my studies. I have been fully independent since November 2025, based in Marseille, working remotely, in English as well as French.
Work
What I have shipped
One case study only, and that is deliberate: the apps I build for clients belong to them. Kelenz is my own product, so I can show all of it, from the first screen to the store listing.
Kelenz
Athletes have nowhere online that looks like them. LinkedIn ignores performance, Instagram ignores the record. Kelenz brings both together.
Product design, architecture and development end to end: the app, the API, the database and the release.
- Designed, built and shipped single-handedly: app, API and database
- Activity feed, real-time messaging, push notifications, filtered search
- Full athlete profiles: season statistics, honours, club history
- Live on the App Store and Google Play, on iOS, Android and web
Tell me what you want to build
A thirty-minute call is enough to know whether it is doable, how long it takes, and what it costs. No commitment.
Or write to me directly: contact@pierrenana.com
Reply within 24 h