iOS Development, Swift / Swift UI, iPhone iPad by Guillaume Derivery

iOS Development, Swift / Swift UI, iPhone iPad by Guillaume DeriveryiOS Development, Swift / Swift UI, iPhone iPad by Guillaume Derivery

iOS Development, Swift / Swift UI, iPhone iPad

Guillaume Derivery

Contact for pricing

About this service

Summary

🏁 From the idea of your mobile app to a fully working product being distributed. 🗺️ Each project is analyzed meticulously, the technologies and architecture are chosen carefully and in accordance to the specific needs of this project. 👷🏽 All the work is being done in full transparency.

⬛ No black box 💰+ 🕰️ + 🍔 On budget, on time, on scope—guaranteed.

What's included

📃 Documentation
Complete documentation about the product needs: - Definition of MVP or v1 - Functional specifications - Technical specifications - Agreement for the services
💾 Versioned source code
A read access to the fully versioned source code on Github
🧪 Testflight versions
Testflight milestone versions shipped all the way through the project development cycle
🚀 AppStore submittion, validation & release
A complete set of services during the development, submission, validation and release of the application

Recommendations

(5.0)

Nikko Shkreli • Chivy

Client • Jan 16, 2026

Recommended

Working with Guillaume for over a year has been exceptional. As CTO of Chivy, he has consistently demonstrated high technical rigor, clear judgment, and strong ownership. He is professional, reliable, and always on time with deadlines. His execution quality and leadership on the technical side have been a major asset to the company.

Skills and tools

iOS Developer

Mobile Engineer

Fullstack Engineer