Avis (45)

Note globale
2,1
Nombre d’avis par note
  • 47 % des avis sont des avis à 5 étoiles
  • 0 % des avis sont des avis à 4 étoiles
  • 7 % des avis sont des avis à 3 étoiles
  • 7 % des avis sont des avis à 2 étoiles
  • 40 % des avis sont des avis à 1 étoiles
5 septembre 2025

Scam app. Charges extra with no clear understanding why.

Mushroom Cups International
Croatie
10 mois d’utilisation de l’application
28 mai 2025

Customer support is the worst. I have been trying to reach out to customer support for the past two months, but there has been no response. I have never experienced this kind of careless support from any app. I am facing cache issues, some functions are not working on some devices, and some features are visible on some devices but not on others.

Wacoal India
Inde
Environ un an d’utilisation de l’application
29 mai 2025

The app did nothing to improve performance. When I attempted to uninstall, it left other apps not performing on my site (my new customer form and product reviews no longer function). Shopify confirmed it was due to code from this app screwing up those features. Now I'm left to sort that out because customer support is not responding.

Spectrum Sciences
États-Unis
5 jours d’utilisation de l’application
Modifié le 21 mai 2025

Scammy and Unreliable – Avoid at All Costs! Charged my account after I uninstalled and I have tried to send messages to get help with fixing and no help and it's almost been a week. It's messing up my shopify website and other billing subscriptions. Do not download and install!!!!! Save yourself the trouble and find another app. You deserve better than shady billing practices and ignored support requests.

💙 Blu Rose's Garden LLC 💙
États-Unis
11 jours d’utilisation de l’application
11 septembre 2024

I have attempted to contact support repeatedly via both chat and email for several days, with no response. This level of disregard for customers is unacceptable, especially for an app that handles crucial aspects of an online store.

While the app may have potential, the complete lack of support makes it unreliable for professional use. I would advise developers to drastically improve their customer service if they want to be taken seriously in the Shopify market.

Unless you are willing to troubleshoot every issue yourself, I suggest looking for alternatives with more responsive customer support.

Sicilus Srl
Italie
10 mois d’utilisation de l’application
Dash Labs SIA a répondu 10 octobre 2024

Thanks for your review. We have responded to each of your request but it looks like you're not getting our replies. Can you please double check ?

1 novembre 2024

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.

bundeswehr-ausrüstung
Allemagne
6 mois d’utilisation de l’application
3 septembre 2024

"I'm extremely frustrated with Flash Speed Optimizer. As a paid subscriber, I expected my store to be fully optimized, but there's still a 30% unoptimized score on mobile. This is a serious issue since most of my visitors come from mobile, and it's directly impacting my business negatively. Despite multiple emails and chat messages, I've received zero response. This level of neglect is unacceptable. I demand immediate action to optimize my store and compensation for the damage done to my business due to their inaction. Do not trust this app if you value your business!"

PRINT EXPLORE
Grèce
29 jours d’utilisation de l’application
Dash Labs SIA a répondu 10 octobre 2024

Hello,
we have replied to your requests but it looks like you didn't get the replies.
Can you please double check and get back to us via E-Mail info@flash-speed.com

3 décembre 2023

Aujourd'hui la vitesse Shopify est de 43 comme avant d'installer l'application tout comme sur pagespeed insights.

ORANGE AMOUR
France
9 jours d’utilisation de l’application
Dash Labs SIA a répondu 7 décembre 2023

Thanks for your review. Unfortunately nobody has contacted us in order for support. Please get back to us via E-mail info@flash-speed.com and we're happy to provide support using our app

15 février 2025

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.

Sandy Bums Boutique
États-Unis
Environ un an d’utilisation de l’application
19 septembre 2024

It simply make all your images to fake board at the first loading, then make lazy loading to img, BUT in may cases java have failing and images not show up. page speed goes up immediately but it totally ruin the view overall. second thig: it makes 1K back links from one IP.
And support is not answering at all.

Alus live - Aludaris.lt
Lituanie
3 jours d’utilisation de l’application