Recensies (50)

Algemene beoordeling
2,1
Cijfers per recensieniveau
  • 46% recensies zijn 5 sterren
  • 0% recensies zijn 4 sterren
  • 6% recensies zijn 3 sterren
  • 8% recensies zijn 2 sterren
  • 40% recensies zijn 1 sterren
18 december 2025

Though the app is good, i would like to point out that the support is equally bad. they dont bother to reply on emails or on chat. I had a query which is still unanswered for a year.

Dr Vaidya's
India
Ongeveer een jaar gebruiken de app
2 december 2025

ATTENZIONE! APP TRUFFA. DOPO QUALCHE MESE DI UTILIZZO INIZIANO AD ADDEBITARE COSTI IMMOTIVATI.

Chiedilo al Farmacista
Italië
12 maanden gebruiken de app
28 mei 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
India
Ongeveer een jaar gebruiken de app
5 september 2025

Scam app. Charges extra with no clear understanding why.

Mushroom Cups International
Kroatië
10 maanden gebruiken de app
Bewerkt 18 april 2025

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.

StrapHabit
Verenigde Staten
Meer dan een jaar gebruiken de app
8 januari 2025

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

Repurposed
Verenigde Staten
Ongeveer een jaar gebruiken de app
11 september 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
Italië
10 maanden gebruiken de app
Dash Labs SIA heeft geantwoord 10 oktober 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 november 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
Duitsland
6 maanden gebruiken de app
24 januari 2024

For anyone with a 3th party checkout app ( I have a Cash on Delivery App to reveice orders) dont install this app. I had the issue that customers couldnt checkout because the checkout app was getting blocked. After a night figuring out why customers could check out. I uninstalled the app and removed the code in my theme. For the few days the app was installed ( not used ) i payed 20 dollars.

I am writing a review because it is the only methode to reach you. I cant use customersupport , i have to install the app again

COCOMULA ™ | Site Officiel | Produits Avancés De Blanchiment Des Dents à Domicile
Marokko
22 dagen gebruiken de app
3 september 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
Griekenland
29 dagen gebruiken de app
Dash Labs SIA heeft geantwoord 10 oktober 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