We are Readdle.
Igniting productivity for millions

Our team is on a mission to ignite productivity. Spark is part of Readdle, a privately held company behind famous productivity apps PDF Expert, Scanner Pro, Documents, and Calendars. We’ve been on the App Store since day one, achieving over 200 million downloads and multiple awards from Apple.



Smart. Focused. Email.

Editors’ Choice

by Apple

PDF Expert

The go-to PDF editor for Apple devices

App of the Year

Runner-up by Apple

Scanner Pro

The best iPhone and iPad scanner app

Editors’ Choice

by Apple


The super app for file action


Own your time with calendars and tasks

PDF Converter

Turn anything into a PDF


Readdle is an energetic team of over 300 people working from 30 countries. We are proud of building a sustainable business without any external funding. Join us to create the future of work together.

Our vision behind Spark

Spark is more than just an email client. It’s a philosophy on how people should communicate and organize their work. Our goal with Spark is to help you focus on what’s important and achieve beyond your inbox. Read more about our vision behind Spark.