inSign is a free Android app designed by iS2 AG for the handwritten electronic signing of PDF documents. It is a supplement to the web application "inSign - Electronic Signature". This app allows you to sign PDF documents digitally, making the process of signing contracts easier and more efficient. With inSign, you can sign any document anytime and anywhere, without the need for paper or long waiting times for signatures.

The app is GDPR-compliant and legally secure, providing a safe and easy way to sign contracts. It is made in Germany and offers a simple and intuitive interface, ensuring a hassle-free signing experience. To use the app, you need to have an account with the "inSign - Electronic Signature" web application.