ApexSync is a Chrome add-on developed by Ankush Sarsewar that aims to solve the problem of retaining solved codes when using the apexsandbox.io website. This extension allows users to automatically sync their completed solutions with GitHub, ensuring that their work is accessible across browsers and sandboxes.

One of the main drawbacks of apexsandbox.io is its inability to retain solved codes when the browser or sandbox is changed. ApexSync addresses this issue by leveraging the power of GitHub. Users can simply use the retrieved feature of the extension to access their completed solutions in any browser or sandbox, eliminating the frustration of losing progress.

In addition, ApexSync eliminates the need for manual code pushing to GitHub from apexsandbox.io, which can be a time-consuming process. With ApexSync, users can focus on solving problems without worrying about the syncing process. The extension automates the syncing process seamlessly, saving users valuable time and effort.