A free program for Android, by Square PhotoPhoto Editor Studio.

Square Pic Editor-Photo Editor Pro, Background Eraser & Background Changer is a powerful photo editor app.

It has all the tools you need to make beautiful photos on Instagram, WhatsApp, Snapchat, Facebook, and Messenger.

It is a great way to create square pictures to use on social media. Additionally, it provides a number of effective photo editing tools. To your photo, you can add borders, colored brushes, backdrops, stickers, and text. It also has a professional blur effect for Instagram square photos. This app is very easy to use.