LoyaltyHarbour Image Optimizer

I saved 192 megs on 528 images... 72%!. The app made it easy to do and it took a minimal amount of time to perform the task. ALSO, and importantly, contrary to another review, NO ALT TEXT WAS REMOVED. The app did not affect anything in the Alt Text or SEO. Last, the support staff contacted me immediately with my initial inquiries on operation, etc.

The app also clearly allows you to RESTORE, View Details, Compare File Size...AND even compare the visual difference in files - ALL WITH A SIMPLE CLICK OF A BUTTON.

To reiterate - the support is awesome....not that you need it anyway :-)

Everything worked great! Super smooth transition to have the images optimized and a great price.

outstanding, very efficient, user friendly

It really does work! Significant improvement and the support is top notch, never had better support in my life! If you're on the fence I'd tell you it's worth your money and more!

[UPDATE: 1 year later] Still using it and still one of the best apps and best customer service EVER. Thank you again :)

Great little app, as you know google likes fast pages so compressing images can really help, these guys are cheap and do exactly what it says!

Optimized nearly 2700 images and reduced file sizes by 37% on https://www.dollarbender.com and https://www.magneticcablesstore.com

This is amazing! I'm only annoyed that I didn't get this app sooner. For $17 my website is not only faster for my visitors, but maybe more importantly my Google Pagespeed score has gone from RED (51%) to AMBER (79%!!!). If I understand correctly, this will improve my Google rankings and make my Adwords campaigns more cost effective. For $17! I was trying to do this myself image by image ... I'm glad I only did a few hundred (!) before I found this app.
ChateauAntiques.com is much faster now - take a look (buy some antiques if you like!), I'm really happy with what this app has done and giving five stars is the least I can do for the developers.

I was impressed of how quickly optimized the images and I am hoping it will improve SEO. I recommend this app. the cost is so minimal 1 cent per image try it you won't loose. Thank you.

Works great and really helped compress images without losing quality!

works great, fast and amazing price for what you get. will use this for all of my stores.