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The usage fees are ridiculous, and I didn't noticed until I just saw that I was charged $115 when only a single $25 order came via their app. In all, in 2025, they charged me $720 for 4 small pre-orders. They will charge you based on store volume that has nothing to do with them, even when all the volume is from third party marketplace integrations with Shopify where it wouldn't be possible to use this app in any capacity. Outrageous fees. Stay away from this app if you have high volume that doesn't have anything to do with pre-orders.
Thank you for sharing your concerns — we’re very sorry to hear about your frustration.
Our app’s usage fees are calculated based on the total Shopify store order volume, as outlined in our pricing page. This structure follows Shopify’s billing model, but we understand that it may not always align perfectly with every merchant’s specific use case — especially when orders come from external marketplace integrations.
We never aim to surprise merchants with charges, and we’re continuously working to make pricing details as clear and transparent as possible and your feedback helps us improve both our product and communication.
Best Regards,
Kaktus Team
What can I say from install to now soon to be uninstall - problems!
Add to cart function does not work - on my site
The ap removed add to cart button from my site
I now have to re-upload and publish multiple SKU's
What I can say is the support team tried to help as much as possible and where incredibly diligent helping for over 4 hours - they just couldn't fix the button issues or get the ap to work correctly.
We are sorry to hear about the experience you faced and understand your concerns. Our team has reviewed the situation and provided an explanation, noting that the behavior stemmed from the styles set up in the theme.
Should you choose to reinstall our app, we would be happy to investigate further. Please also consider that you have been using our app since October without issue, and this concern only arose a few days ago.
We’re here to assist you and ensure everything works as expected.
Warm regards,
Kaktus Apps Team
Sudden charges after being installed and used for 3 months without charge
Support refuse to say there is an issue. Send me to shopify for help but shopify say it is the apps issue
I would not recommend this app dev at all after my experience
***Update***
2 Months later after a lot of back and forth emails and live chats between shopify and kaktus i eventually got my refund. It took a huge effort to get this back. Then once received Kaktus then kept requesting i alter my review. So here is my updated review:
I would not recommend this app at all after my experience
Hello Dear Customer,
I want to ensure that we are all on the same page. With all due respect, the way the app ecosystem operates is such that you are charged by Shopify, and Shopify then makes the payment directly to us.
Once you request a refund, we can approve it. However, the actual refund is processed by Shopify or the payment processor, not by us. If you have any stores and request a refund, the process will be the same—some processors might take more time, others less.
It's important to point out that we issue refunds immediately, no questions asked. We still believe that this review is unfair to us, as it does not reflect any feedback on the app itself but rather your experience with obtaining a refund.
If there is anything else we can do, please contact us. We will do everything to make you happy, I promise.
With love from Alex, CEO of KAKTUS.
Horrible, does not load in properly half the time leading to regular checkouts and charge backs and randomly just stopped working after a few days. Customer support was pretty much worthless, use any other preorder app...
We’re truly sorry to hear about your experience. It’s unacceptable for the app not to load properly - especially when it leads to checkout issues and chargebacks - and we regret the frustration this caused. We also apologize if our support didn’t provide the help you needed.
Your feedback is incredibly valuable, and we’re actively working to improve stability and support responsiveness. If you’re open to it, please reach out to us, so we can investigate what went wrong and see how we might make this right. Thank you for sharing your honest experience - it helps us get better.
Best regards,
KaktusApp team
Was trying out new pre-order apps and we ended up going live with this one - it was easy set up and had a fast loading time on our store.
Just when I went to announce on our social media, we did a double check and suddenly the widget was gone from the product page and the app was experiencing a server error - could not even open the app. Decided to give it some time and tried it again. Server came back maybe 20 minutes later and we went live. About two hours later we were notified by a customer trying to check out that the widget was gone and there was not an option to preorder and we saw that the server was done again. Bad first impression and definitely upsetting. We had to uninstall the same night and find an alternative so we wouldn't lose sales :/
Thank you so much for sharing your detailed experience. We’re truly sorry for the disruption you faced - especially right as you were launching a campaign. We understand how critical it is for everything to work reliably when customers are ready to buy, and we sincerely regret that server issues led to a poor first impression.
While we’ve since stabilized our servers to prevent this from happening again, we completely understand why you needed to move quickly to protect your sales. In any case, thank you for your candid feedback - it’s invaluable in helping us improve.
Best regards,
KaktusApp team
Charges you for all orders through your store, even if they didn't use the platform. 65 pre-orders cost us hundreds of dollars in usage fees.
Also, terrible support - passes blame back to Shopify when the pre-orders don't complete the second payment.
Awful app, awful people.
We’re truly sorry to hear about your experience. It’s never our intention to cause frustration or unexpected costs. For transparency, the app fees are based on total orders processed by your store (as outlined in our pricing), not just orders that complete a second payment. We understand this model may not suit every business, and we appreciate you sharing how it impacted you.
Regarding the second payment issue, pre-order payment flows rely on Shopify’s checkout and billing systems, which sometimes limits what we can directly control. That said, we absolutely take responsibility for supporting our merchants and regret if you felt we didn’t help enough.
Thank you for your candid feedback; it helps us improve our app and support.
Best regards,
KaktusApp team
Wonderful customer service that helped us fix a small issue quickly. This app was easy to use and we were able to create a pre-order for some of our seasonal and holiday products. Highly recommend!
We’re so happy to hear that you’re satisfied with the support you received! Our team works hard to provide fast and reliable help, and it’s great to know it made a difference for you.
Best regards,
Kaktus Team.
Stellar app + stellar service = winning combination! The app is a lifesaver as I had some issues with a different preorder app that crashed my site thus I found my way to greener pastures with Kaktus!!! This is sooooo user-friendly, easy to setup in very little steps and with much ease. The interface is easy to handle and really only takes about 3-5 minutes to setup. I had a few custom design/functionality questions and with the simple use of the chat interface, I was up and running in under 3 minutes!! A COMPLETELY different experience from the previous app I installed and quickly uninstalled.... this one is definitely a keeper! Keep up the great work and thanks for supporting us small business owners!
We’re so happy to hear that you’re satisfied with the support you received!
Our team works hard to provide fast and reliable help, and it’s great to know it made a difference for you.
Best regards,
Kaktus Team.
I had a question regarding the pre-order button, and they answered immediately!
The pre order app is really easy to use. You can set up shipping dates, set a a date limit for pre-order and discounts. Very easy
Your kind words mean a lot — thank you! We're always here to support you.
Best regards,
Kaktus Team.
After using this app all orders left a committed inventory amount for all products in all orders despite the orders being fulfilled.
Complete waste of time using the app as it has not screwed up my stored inventory quantities.
We’re truly sorry to hear about the inventory issues you’ve encountered. That’s absolutely not the experience we want for our merchants. It sounds like there may have been a syncing or configuration problem that caused inventory to remain committed even after fulfillment.
Thank you for bringing this to our attention - we can investigate the reason of this happening, and see if this issue is related to our app, it helps us improve and ensure it doesn’t happen again.
Best regards,
KaktusApp team
