Company will not reply to any messages or emails. Update: Only after I left 1-star review, the company did respond with a brief message that didn't clearly answer my question, and then asked me to change my review, but has not replied to my follow up question. I am now trying to use the compress images feature, but an error pops up that I can't read. I believe it wants to ask for more money. As others have said, I also discovered this app is charging me usage charges which are not disclosed anywhere. Update #2: I changed the review from 1 to 3 stars. Someone from the app replied to me and pointed out where the additional usage charges are displayed. I don't recall ever seeing this before, but it is there now. The app did improve the speed of my store, but the extra usage charges, bugs with compressing more than 1,000 images, and limited customer service mean it's not a 5-star app.

Company will not reply to any messages or emails. Update: The company did respond with a brief message that didn't clearly answer my question, and then asked me to change my review, but has not replied to my follow up question. I am now trying to use the compress images feature, but an error pops up that I can't read. I believe it wants to ask for more money. As others have said, I also discovered this app is charging me usage charges which are not disclosed anywhere.

Worst customer service I have ever experienced. I have been reaching out trying to get help with numerous things since I started using the app and I have never received a response.

I think no one is working on this. I was interested in purchasing the paid plan, but for 4 business days I received 0 support.

I’m not going to give them a 1-star as some did because that seems petty. The app seems to work, although I’ve been trusting their analytics to tell me that. My concern is that they have "usage charges," but I have no idea what they’re for. I searched both the FAQ and documentation for "usage," but got nothing. I sent an email asking, but never got a response. I see a number of other reviews that mention this too and, for the record, I’ve checked my junk mail folders. Because of this and the general need to cut back on paid apps, I’m uninstalling

Terrible support, due to no support, removed the app and it left code in the site that broke features in my store. Had Shopify support involved with the issue and they responded several days later "we refunded the customer" leaving no regard to get the code removed from my website.

Altdaten im Quellcode nach löschen der App. Das führte zu verschiedenen Shop Fehler. Es wurde unteranderem kein Favicon mehr angezeigt und andere Apps wurde im Hintergrund blockiert (z.b. Klaviyo). Damit ist man praktisch gezwungen, die App dauerhaft zu nutzen, weil es sonst zu Problemen im Shop kommt.

Flash speed is great. Their support helped me out quickly to solve some issues I had in the beginning.

Can’t say anything negative about it. Marc & Matiss helped me to fix a few bugs I had in the beginning, since then it works great

Good app that also includes image optimisations. 100 are free each month, but the price per image is cheap.