NumberBook

App for iOS

About the app

An iOS app for identifying and blocking unwanted calls.

My role

I developed the entire app independently for a client.

Swift
CallKit

Details

NumberBook uses CallKit system integration for call identification and blocking. The solution includes synchronisation of phone number packages for the app extension.

Screenshots

BackContact

Ing. David Blažek

mobile app developer

Mobile+420 608 707 759

Emaildavid@blazek.mobi

LinkedInlinkedin.com/in/david-blazek

Company ID04182570

About me

I develop apps for iOS and Android. I have over 12 years of experience and work remotely from Zlín, Czech Republic.

Working together

I prefer building new apps and can also take over an existing project. My strongest background is native iOS, with experience in Android, cross-platform development, Apple Watch and Apple TV as well. I focus on clear architecture and maintainable code so apps can continue to evolve over the long term.

I work with Czech and Slovak clients and can communicate in English. I value quality work, reliability, open communication and fair collaboration. Occasional on-site meetings are possible depending on location and project needs.