Onesck - Socks are sold one by one. review for SEO Image Optimizer Wizard

This app is unbelievable, thank you so much for saving me 33 hours! It optimised 409 of the images on my website to make them smaller, and so the website faster. There is no discernible difference in the quality of the images to the naked eye! Brilliant app, can't believe it is free. I really hope the images stay on the website like this and I don't need to pay for them later...?