This app broke my website and removed crucial theme files after the initial "optimization" process. Thank god I didn't publish changes. Not impressed. Update: Support team reached out and offered troubleshooting options. While this app runs in sandbox mode until you publish the changes and even offers the ability to revert back to your original code if there are any issues, the fact of the matter remains that this app caused problems for my site and I'm not going to pay $19/USD a month to go back and forth in troubleshooting. Changed rating from 1 star to 3 stars due to support reaching out but for an app designed by a company called "PerfectApps" - I'm sorry but your app is not perfect.
This is Brian from Swift ‑ Page Speed Optimizer Support Team. Thank you so much for trying our app and your feedback.
Firstly we're sorry for any inconvenience that may have caused.
With your concern, please be advised that we always put the safety of theme on the highest priority by allowing customers do a preview on duplicate theme first before applying code officially then users publish the optimization on their live theme.
Also, there is a button "Remove all codes" already included in app so no worries about any affect may cause. Just click on this button, then it will revert back as the origin.
If there's anything else we can do to help, please let us know via our live chat or email us at firstname.lastname@example.org
Swift ‑ Page Speed Optimizer Support Team