United Kingdom
Performance eCommerce
David is a pleasure to work with. He is deeply knowledgeable about his products, supportive and very reliable for rapid help when the need arises. His Opencart plugin is one of the best and most comprehensive we've found, and we look forward to seeing his products reach more shopping carts for our integration with Google Shopping campaigns. David is highly recommended!
United States
Discount Filing
Google Marketing Tools has helped to elevate our business to the next level. It was a little hard to setup everything and sync to the google tools to get everything tracking but Devman is quick assist and makes it much simpler. I also love the constant updates to the module that keeps it running perfectly.
Since 2015 I work with the Opencart Plugin Google Marketing Tools from Devman Extensions. His work is always complete and up to date.

With this plugin you have all the marketing requirements in 1. All important functions for Adwords, Google Ads, Facebook, Twitter, Criteo, Google Merchant Center and Hotjar are available. The plugin is regularly updated to the latest standards.

Every fix was within a few hours. Not once but every time. In addition, he takes every adjustment into the next update so that you do not run into the same error again.

Very reliable and easy to set up.

Keep up the good work!
United States
Billy Gladky
David is one the most talented people I have had the pleasure to meet and work with. His knowledge in programming language is out of this world. Anything I throw his way he fixes like it was no big deal. Knowing how to do some programming, his work is very clean, very detailed, and noted where the changes are made. I couldn't recommend anyone else but him when it comes to great work, very responsive and knowledgeable in the field he dearly loves. I've been doing this a long time, and I thank God i met this young man to save me at the last minute when something happens.
United Kingdom
Daisy Bee Design
David is a fantastic developer - I have used several of his modules across various websites for different clients and they always do exactly what they say they will do - they are easy to install & come with clear instructions.

Any time I have had to get in touch the support offered has been second to none - really fast response time, really helpful and a pleasure to deal with.

I highly recommend David and his modules & web services.
Ricardo Luan / Antonina Contemporanea
I am using The google markting tools and the Quick n Easy Chekout Extensions, and it is working very good.

My developer did not made a great job at my checkout page, but David (the real ID to Devman) did, and helped me too much to solve my issues.

Theese extensions are really relevant to our e-commerce by now.

United States
Clancey McCray / Mathand, Inc.
Marketing Specialist
David is amazing. He is responsive, friendly, and an awesome asset to me as a non-developer manager of an OpenCart website. He customized one of his plugins for me, but not only that, he fixed several things that were wrong with my website in general that my previous developer either missed or didn't fix. He made the corrections with quality and speed. He also helped me in a tremendous way when my website crashed. He found the problem and helped me learn how to fix it. I am very impressed with David, his skills, and his products. I would recommend him with more than 5 stars if I could! Thank you David!
Fantastic support to fix some small issues due to our custom seo url setup. David is always prompt in replying, solves problems quickly and in a very pleasant way. Thank you David!
Urban Pet Products Pty Ltd
David was easy to work with and his extension Google Marketing Tools has made integrating Google and Opencart that much easier. Initial set-up had a few hiccups, but David was quick to assist in setting up both Google Tag Manager and modifying his extension. David made integrating his extension into our website a hassle free experience.
United States
Anne / Bright Ideas
Marketing Coordinator
I cannot say enough good things about Devman. I am a programming rookie with a wholesale website to create and needed a LOT of help to get my it up and running properly (we have no programmer on staff). Due to my company's business model, I needed a fair amount of custom work done and "tweaks" to the opencart structure to be able to make it function the way it should and Devman was there for me every single step of the way. The costs were very reasonable, the service was excellent and very fast - even with being 7 time zones away, the works were always finished within a few hours of when they received the request. You are the first that I will reach out to for all future programming and extension needs! Thank you so much for all that you do!
David es un apasionado de su profesión, no solo eso es también un muy bueno en todo lo que hace, ademas tiene una enorme vocación al cliente cosa muy importante para nosotros y también en para el resto de sus clientes, es un perfeccionista en todo lo que hace.
Para mi para y para Evoweb es es un privilegio trabajar con el y en el futuro seguiremos trabajando juntos.
Vened GbR
Excellent extension and the best support I've ever had!!!
Mit dem Produkt bin ich sehr zufrieden und kann es nur weiter empfehlen! Danke und gern wieder!
Отличный модуль и поддержка!!!

Mattresses Senso G
We are very grateful for the great help given to our company in terms of its wonderful extesiones, as well as the resolution of any problem on our website. For us it is one more of our company. Thanks a lot, David
Working with David is just amazing, excellent customer service to resolve any doubt. Highly recommended
Hong Kong
Devman is efficient and quick developer to help us a lot to solve many problems. We highly recommand to use his extensions in Opencart and for any custom works. Thanks and you deserve 10 stars for your works!
Saudi Arabia
Marine Life Trading Est
Mr Dived one of the best developers i ever deal with he is providing a good quality services with great features and he is responding to any mail or ticket very quickly.

Thank you so much Dived for your support and your products.

Mahmood Kidwai
United Kingdom
If I had to some up Devmans products, service and support in one word.
Whenever there have been any problems David has been very quick to answer, normally same day. Nothing is too much of a problem and he always goes that little bit further to help. It is a rare commodity to find such a high-quality, diligent developer.
We are already engaging with David for other ideas.
I'm so thankful to David for his Import / Export extension!

The Import module I bought helped me to replace my old custom Excel import system without even a bit of coding. The module is extremely powerful, so everything I might need is already included and all I had to do was to make proper settings. That's so amazing!

David is an excellent person to work with and I highly recommend his products to every e-commerce shop owners.
Andrei Inkark
I am very pleased with how I worked with you: very quick response and fast support.
We will also use your services in the future!


Slovak Republic
We are building eshop to sell electronics in central europe. Our supplier sent us just usuall XLS file with products. Without plugin made by devman it would take maybe two weeks to sync it with eshop. (or make from than useful XML or CVS). With plugin it took just one day. And support is great= fast response and will to help. Highly recommend.
United Kingdom
Managing Director
We have found DEVMAN to be a very professional and a really nice and friendly company to work with. The bespoke development work they provided for us was quickly done and to an excellent standard. Equally their after sales support was exceptional. We would recommend their services and will be using DEVMAN in the future. A 5 star company.
United States
ProBass Networks
Vice President/Dir of Sales and Marketing
Unbelievable customer service. Ran into a couple of issues when installing other extensions that caused an overwrite issue with the Discount Pro extension. Send a plea for technical support that was answered and issued resolved in hours, not days.

If you are looking to purchase ANY of the Devman extensions, do not hesitate! They work as promised and as mentioned, the customer support is excellent.
Vened GbR
Very useful module! with great support!
Aesthetic Apparels Private Limited
Sales Head

I run an Indian Fitness Clothing Brand & I was in a mess with the plugin. I have a COD Plugin that works only with AJAX Checkouts (which wasn't working like I desired & hence I had to contact the support). David has been of a great help all throughout the integration process to make sure that the checkout as well as my customized module work together.

Big ups for the fantastic support offered by Devman.
United Kingdom
Marc / goldengoosegifts
This is one of the best developers and extensions I have every used. I would highly recommend the extensions and the support is second to none. I will be purchasing an additional licence for my other store in the future. Well done keep up the good work.
Eric / Ultralink Solutions
Sales Manager
We implement Devman's Import/export tool for Opencart, it woks nice and support is good, they also customize it for us very quickly.
very awesome excellent module very helpful
Palestinian Territory, Occupied
Media Clouds
Devman is an outstanding service provider, we used some of their extensions for opencart, and the support service they have is so reliable and fast, all the best.
Circea Mass Media, S.L.
The best user suppor ever.
Linards Lazdins / CreateIT - Digital Agency
Project Manager
We can Highly recommend DevmanExtensions for OpenCart solutions! Very professional company to work with.
I have bben using Google Marketing Tools for some time. I have never had any issues with this extension in fact it is excellent. When I have contacted David he is always extremely prompt and helpful. I recomend him and his products very highly.
Clothing Branded LTD
Clothing Branded LTD
The best module and fast support. You are perfect. Thank you +++
Ching Jen Wnag
It helps me a lot and works very smart.
I am so glad to buy it.
Czech Republic
Erkado CZ
We can not imagine an eshop analyc without Devaman's extension
United States
perfect, works great and smooth. easy to install and fun to use.
Familius Kinderschoenen
Different than other opencart extension. wish all where build this way :)
Mihai / CoverStore
The extension I bought is perfect. On the support side, the developer responded very quickly and always with pleasure. I strongly recommend it!
Excellent developer, David knows his stuff!
Natural Parenitng SRL-D
Purchased an extension based on the recommendation of a marketing specialist.

It was not compatible with my custom theme so it was quickly adapted for a small fee.

I still need time to see it does what it should on the long term, hovewer until now I am satisfied.
Software Developer
David is a great developer, he loves to code and finish the job with brio.
I recommend it to everyone who are looking for a great and serious developer.
Ömer Güngör / Kusaynet
I can see clearly which ad provider is more productive The extension is great, but the support is much better.