Reviews (56)

Overall rating
3.9
Counts per rating level
  • 71% of ratings are 5 stars
  • 2% of ratings are 4 stars
  • 2% of ratings are 3 stars
  • 4% of ratings are 2 stars
  • 21% of ratings are 1 stars
September 3, 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
Greece
29 days using the app
August 13, 2024

This developer doesn't respond to questions on slack or email. I need technical help and I have questions about usage fees. I've had the app for a little over a week now and my website speed hasn't improved. I will be cancelling this subscription before I'm hit with more usage fees.

VacationGrabs
United States
7 months using the app
May 3, 2024

Hi Guys ,
What s change in my bill

About this app
Improve Page Speed for better SEO rankings & Conversion Rates

Billing and usage charges
Billing cycle
........ USD every 30 days

Usage charges
$4,00 of $40,00 USD limit. Resets 18 May 2024.
Bill
Next charge is on 18 May 2024

STREETMODE™
Germany
7 months using the app
March 25, 2024

Very expensive and misleading, money pit. It does what they say, but at an unreasonable and unexpected price, way above $19.90 they advertise. Also, they raised their base prices without warning, when I installed, the base price was $9.90

Anbu Clothing Brand
Serbia
5 months using the app
Dash Labs SIA replied March 26, 2024

Hi Anbu Clothing,
for old subscribers, we didn't raise the prices at all. Please write us an E-Mail and we will get this sorted.

March 13, 2024

App seemed to be doing a great job, then about 2-4 weeks ago the page speed dropped. I've tried three times to contact support, but no one has gotten back to me.

Throne Boss Australia
Australia
7 months using the app
Dash Labs SIA replied March 26, 2024

Hi, I replied to your E-Mail 14 days ago, but we didn't get any response to it. Can you please check if you received the E-Mail and let me know?
We will definitely give our best to speed up your store.

Regards,
Marc

March 13, 2024

Stay clear of this app. DO NOT INSTALL.
contacted support 6 weeks ago, no response. Customer service non existent.

BecauseYoureGorgeous.com
United Kingdom
4 months using the app
Dash Labs SIA replied July 13, 2024

Thank you for your review. Please contact our support or contact Marc in our Slack channel and we will figure out problems

February 22, 2024

Unable to reach anyone. App not working. The comparison page speed does not load at all. Tried emailing 3 times no response. Also if you have something like Pagefly, it will cause issues.

Riderbag Reflective Bike Commuter & Motorcycle Backpacks
United States
13 days using the app
Dash Labs SIA replied July 13, 2024

Thank you for your review. Please contact our support or contact Marc in our Slack channel and we will figure out your billing problems

March 25, 2024

even if you dont like and want to remove the app compeletely, it is not clearing its codes. DONT USE THIS

Yellow Cart Family Store
United States
37 minutes using the app
Dash Labs SIA replied March 26, 2024

Please drop us an email and we can clean it up for you. The code is located in your theme.liquid file and should be clearly visible / commented

Edited December 14, 2023

BAIT & SWITCH - There is NO FREE TRIAL!! Do NOT download this app!! They offer a "FREE" trial but in fine print there's up to $40 in usage fees. Zero clue what that was. I immediately removed app. Unsure how this ever got approved.
UPDATE: Yes you didn't charge my account because I caught your little scam of $40 usage fees for a free trial and as clearly stated above - deleted the app. Thanks for the sexist mansplaining tho.
UPDATE 2: This guy stalked me on Instagram and started DMing me. I had to block him. THEN he removed his old reply and came here and starts again. This is BEYOND unprofessional and downright creepy. It's VERY alarming you've become so unhinged over a negative review about FACTS. And yes I did use the app. I downloaded it - saw the usage fee of up to $40 when there was ZERO visible explanation and so I deleted it. The ONLY thing your non stop replies and stalking me on another platform does is prove my point - DO NOT DOWNLOAD this app!

Karen Moran Designs
United States
5 minutes using the app
Dash Labs SIA replied December 13, 2023

Dear Karen,
first of all, we didn't charge your store any single dollar. Thus, I don't understand why you didn't ask our support team through E-mail or Slack about the usage fees, before leaving a bad review.

There is a 7 day trial but you uninstalled our app after 5 minutes - thus your review doesn't seem to be based on experience. Please get back to us and I am happy to explain everything in detail

Update: sorry, I just tried to help. A 1 star review for not using our app after all, without contacting us to explain it just doesn't seem fair.
The 7 day trial is completely free up and there are no charges in that period except if you pass 10.000 requests. Then a $4 charge applies up to a maximum of $40 - which equals 100.000 requests

December 3, 2023

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

ORANGE AMOUR
France
9 days using the app
Dash Labs SIA replied December 7, 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