Zepto Product Personalizer
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This app has been great for us at Hamag. It allows very detailed personlisation along with the ability to show our customers what the customisation will look like. The support is second to none. Always ready to help out and very quick. Highly recommended.
Been using the app for a few years now, from the old legacy version through to the new version.
A few issues along the way, but nothing support couldn't help with, in a prompt manner!
Very handy app for us, managed to reduce our processing times considerably.
We have been using this app for about a year now and have had nothing but positive experiences with it. The support staff is also top notch. The level of detail they have provided in solving some limitations we have come across has been amazing.
Works well, good support. Would be nice if the issue with changing the image but not the name in an image set was fixed.
This App often causes Various errors. Add on Fee sometimes dissapear, causing customers only paying basic fee even when they chose more expensive options.
Image Links often break randomly, causing error popups beeing shown to customers. Especially after there has need an update suddenly problems apear months later.
Customer Support is quick to reply but often just telling you what the issue is instead of helping you fix it. Get ready to talk to them for an hour and then redoing products every now and then. Quite annoying if you have complex Products
Hi Koni Design Shop team,
Thank you for 3+ years with us, and for taking the time to write this honestly. Reading it is hard, but it's the kind of feedback that drives our priorities — so let us address the point directly.
Why the add-on fees disappear. This is rooted in a real Shopify platform constraint: customizer pricing runs inside Shopify's Cart Transform Function, which has a hard 11 million-instruction compute limit and a 20 KB output cap per cart. On carts with many personalized items — especially when other installed apps (translation, bundles, currency converters) re-process the cart attributes — these limits get exceeded and Shopify silently falls back to the base product price. The customer pays less, and you don't see it until the order arrives. This is a known industry-wide issue affecting every app that uses Cart Transform, not unique to ours, but we own the responsibility of handling it well.
What we've shipped in the last month specifically to fix this:
Rewrote the entire pricing function in Rust — 20–30× faster than the previous JavaScript implementation. Carts that used to fail at 7–16 personalized items now safely handle 100+
Added auto-repair for cart lines where customizer metadata goes missing mid-session
Added an output-size budget check on the storefront — if a cart would exceed Shopify's 20 KB limit, the Add to Cart button is now disabled with a clear warning before the customer reaches checkout, so silent fallbacks can't happen
Our sincere apologies for the accumulated frustration. We want to earn the next 3 years.
— The Zepto Product Personalizer Team
Worst Shopify app I have ever used. I sell jewellery and have a charm necklace feature however customers have been able to order and are not being charged correctly for the charms, resulting in me loosing money with every sale that is made. Even after I contact their support team and was told the issue was fixed I received more orders that were still not being charged correctly. STAY AWAY from this app it is not with the trouble and there are plenty more options available. Such a waste of time and money
Hello,
We sincerely apologize for the frustration and the impact this had on your sales.
To clarify for other users, our team identified that the initial conflict was caused by a "Sticky Add to Cart" feature which we have fixed immediately. Once that was patched, we discovered a secondary conflict within your specific mobile theme settings that was overriding the app's logic when the order was placed from mobile device.
While our app works perfectly with most themes, your specific theme used some uncommon patterns and a JavaScript conflict that interfered with the checkout process. and we have fixed it within a hour after we found the issue.
Since those fixes, we can see your orders are now processing perfectly and in the live chat you have confirmed us that now the order issue is fixed.
Our goal is always to provide a seamless experience, and we’re glad we could get everything back on track for you so quickly. If there is anything else we can do to support your jewellery business, please don't hesitate to reach out.
Great App and Support, not a big learning curve, we are using it for "Sport Team Tour" shirts, where the player or parent can change the name and number on the back, optional initials on the front, and the tour name and logo stay the same.
Really happy with this app!
At first, I struggled a bit since it was my first time using a product personalizer, but their support team was honestly amazing. They were always there to help, sending clear screenshots and guidance.
Special thanks to Saki for taking the time to record videos just for me—this helped a lot! Also big thanks to Joy, Muhtasim, Musabbir, Atik, and Sakib for being so kind and supportive throughout.
Definitely recommend if you want both a good tool and great support behind it!
Now my designer tool is live on my store and working exactly how I wanted.
Zepto and the team really helped us build a smooth custom design product flow. We’re very happy with their support. The dev team understood exactly how we wanted the customer experience and helped improve our add-to-cart flow significantly. Highly recommended!
This app does a lot for the price. Does take some time to figure out and setup, but support is always there to help out and answer questions.
