Booster: Page Speed Optimizer , 1,274 reviews

Enhanced User Experience:
Since implementing this app, my customers have enjoyed a much better shopping experience. It's intuitive, responsive, and adds a lot of value to my site.

Blazing fast!!! I hired a company to Optimize our site speed. They did a perfect job and our site speed is now great! Our GTMetrix score is now an "A", and our Google Page Speed is 89 on mobile and 95 on desktop. Yet in spite of the near perfect page speed score, our site still felt slow. Images loaded slow. Everything on our pages had a lag. But adding the BOOSTER app brought everything together and achieved the effect we were shooting for. We now have a massively quick site!!! This 1 - 2 approach has worked for us... 1. Get the store optimized/configured to play by the rules to achieve a favorable site speed score. And 2. Use a good caching tool like the BOOSTER app. This combination has made all the difference for our store!

I can't believe this is free. I had a major issue with my shopify store loading slow because it was being weighed down by photos. it's a clothing store. whatever magic this app does, it made the store instantly load. like, blink your eyes fast. it's amazing.

After approx. 2 mos. of use and seeing absolutely no change that represents any optimizing as the name and description implies and/or claims, I give this app a 1-star rating for usefulness and a 5-star rating for deception.

Amazing app, it does exactly what is promised. I am very pleased with all of their apps. The pages of my store definitely load faster, but i don't know if it is my Wi-fi, mobile device or something else but it doesn't feel very smooth scrolling down in my store. I have decided to try another app and if it is worse i will definitely come back to this app again.
UPDATE: I decided to not install the other app and uninstall this app, i don't want to risk it, this app is just too good and i like everything the way it is.

I'm very sorry but I couldn't get any results. I uploaded 1 week passed, but my speed remains constant at the speed before uploading. I didn't get the result.

Mon avis est mitigé. Déjà l'installation n'est pas claire vous cliquez sur un bouton et c'est tout , le message est d'aller voir le site et de revenir... Bon. À la première vue il est rapide (mais pas plus qu'avant).
Ensuite il est précisé qu'aucun outil de mesure de la vitesse (genre Gmetrix) ne sera positivement impacté. Il n'est pas possible de mesurer le gain de rapidité. Ah. Bon.
Sur l'interface de shopify j'ai toujours la note de vitesse de 34. Ce qui signifie que ma boutique est plus lente que les autres... Donc est-ce que Booster fonctionne ?
Seul Booster le sait.
Soit ça fonctionne et c'est l'application la plus simple et efficace du monde
Soit ça ne fonctionne pas (pas d'amélioration) et c'est l'application la plus initule qui soit.

I will structure this review as it will be a bit longer and more into depth of how the app works.

Overview:
After spending substantial time working with the app I've come to appreciate its potential as an SEO tool. It certainly aids in SEO, yet it is essential to note that it doesn't entirely replace manual work. While the app automates some tasks, these tasks typically only take between 10 to 40 seconds per product to accomplish manually.

Customer Support: 5/5
The customer support experience with Booster deserves a perfect rating. The support team is not only responsive but also extremely helpful. Their proficiency, however, could use some improvement when it comes to the specifics of SEO.

The App itself: 3/5
The functionality is crucial to discuss. It quickly becomes apparent that once you start using the app in earnest, it becomes an integral part of your online store's operation, almost to the point of being irreplaceable.

This permanent fixture results from the design, which encourages you to conduct all your SEO work within its framework. For instance, all overridden meta data is stored in a "booster config" metafield by the app. This structure has a significant implication: If you decide to uninstall the app, the "booster config" metafield is also removed, thereby erasing all your hard work. As a result, you would need to redo all the SEO adjustments manually.

In conclusion, while the app has some valuable features, it comes with a critical limitation: the potential loss of your manual work if you choose to uninstall the app. Despite this, if you're looking for an app to streamline some of your SEO tasks and you're willing to stay with it for the long haul, it could be a viable option.

Very very good app, got my pages improved by 35-50% in terms of speed. Will help SEO for sure. Now I just need the final touches and ready to launch!

So happy with the page speed! I tried almost everything and this works for FREE!