Crush: Speed & Image Optimizer

Doesn't work with our image.

We wanted to make sure the compression algorithm for lossless was powerful enough (30% announced sounds quite low in comparison to tools like TinyPng), so we ran a trial on one specific product.
We optimized all images, lossless at first, then a few with lossy compression.

The app says xx% compression, but Google Page Speed says nothing changed.
Ok, we downloaded the so said "compressed" images, from Shopify (changing the ?variable to make sure we have the latest version)... Nothing changed.
So, let's try to download the preview image displayed on screen that is supposed to show a comparison between the old and the new image.
Surprise... Same image, same size.

The comparison tool is very fancy, but both images are not on the same layer, the second image has a small offset of a few pixels, so it gives the impression the image is not identical, but it is.

Again, it might just be a bug, but the fact the tool says the image was compressed by "xx%", and that the comparison tool second image is offset a bit is not reassuring.

Edit:
I'm suspending my judgment temporarily. We've been in touch with the developers and it looks like our image are already too optimized for their app to have any significant effect on one hand, and that Shopify is messing up with optimized images (increasing their size) on its end.

For now, my first conclusion is that this app is pointless for those who know how to save their images (photoshop, gimp, or recompressed with online tools like TinyPNG) because Shopify already has its own algorithm.
Since Shopify algorythm increase the size of overoptimized images, negating the benefit of this app, it sounds pointless.
See here about image compression issues with Shopify: https://ecommerce.shopify.com/c/ecommerce-discussion/t/shopify-image-quality-optimization-round-2-with-stats-38-improvement-304813

We're in touch with the developpers, if something come up, I'll update my review;
Until then: I do not recommend the app to merchants already saving their images for internet use with proper comrpession.

Très bien l'appli est facile d'utilisation, pratique pour compresser les images et vraiment simple d'utilisation

I have tried other image compression apps. I personally think this is by far the best. Simply because it has lossy compression. I just wanted the highest compression available (lossy) - the smallest file size.

What exactly happen was that over 2000+ images on my site were already compressed by another app and even by myself using ImageOptim, so I wouldn't expect using crush.pics will make any changes. Surprisingly, it was able to further compression a nice 30% on average more.

I am so glad I got this app. Thanks guys!

I am so pleased with the Crush Pics app. It has made compressing and renaming my files one less thing I have to worry about!

I love how seamless the app is. This app made crushing photos and the process a breeze. Appreciate the app, very much!

Easy to use and fair enough with the free plan if you have less than 100 pictures to resize. i recommend

App did not work. for me at all. When I attempted to compress my photos it would keep saying retry and would never compress the images. I tried the automatic compression and it still wouldn't work. Waist of time and money. Also, it will only compress product images, not blog post images.

Quick and easy to use - used the free plan to start - saw the value and now i am happy to pay the $ to use added quota :) makes our store load quick and fast for customers -> check out www.deadreckoning.co.za

I installed the app on my shopify store, but after I tried to open it the only thing I see is a blank white page. I don't think it works

Not impressed. It counts the size of your entire image towards the quota, not just how much it saved. If my images were already all optimized, I'd run out of bandwidth, even though I shouldn't, because there's nothing to optimize.