There are tools built directly into iOS and Android for signing your documents.

Today, in an effort to simplify online document signing, Zoom and DocuSign announced a new integration that lets you review and sign a document right within a Zoom meeting, greatly simplifying the ...

For the future, Hirson said DocuSign is also exploring how blockchain and machine learning can be applied to systems of agreement to provide intelligence within the document signing process.

DocuSign is user-friendly and allows you to sign and track documents from any device. With over a billion users, this software is extremely secure when it comes to signing contracts online.