Talk to the people who built it.
Whether you're exploring your options, launching a new project, or already using Quantum Add-ons, we're always happy to help.
Questions before you buy, help getting set up, or something about your license. We read every message and reply within one business day.
- Replies within 1 business day
- English and Dutch
- Answered by the makers
- Email us
The quickest way to reach a real person. Setup, technical questions, billing and licenses, all handled from one friendly inbox.
- Thinking it over?
Ask us anything about your Houzez setup, your payment methods or your workflow. No pressure and no sales script, just straight answers.
- Rather dive in?
Our step-by-step docs cover installation, connecting Mollie and every payment method, so you can get going right away.
Tell us what you need
How can we help today?
One short form is all it takes. Your message comes straight to us, and you get a clear answer back by email.
Send us a message
We answer every message personally, usually within one business day (Monday to Friday, CET).
We only use your details to reply. No spam, and no marketing unless you ask for it.
What happens next
- You send your message. Pick a topic so it reaches the right place faster.
- It comes straight to us. No ticket maze, no bots in between.
- You get a clear answer, usually within one business day.
Good to know
- We reply within one business day (Mon to Fri, CET)
- Support in English and Dutch
- Answered by the people who build the plugin
Real help from the makers, not a call center
Buying software shouldn't be complicated. If you have questions, we're here to help with clear answers and honest advice.
Quantum Add-ons is run by the people who build the plugin, so your question always reaches someone who knows the answer.
- Before you buy
Want to know if it fits your Houzez setup, payment methods or workflow? Ask first and buy with full confidence.
- Setup and installation
Connecting Mollie or picking your methods? We help you get from download to your first live payment.
- License and billing
Questions about your plan, renewal, invoice or the money-back guarantee? We sort it out quickly and clearly.
Behind Quantum Add-ons
We believe great software starts with great conversations
We’re a small team of developers, designers and WordPress specialists who genuinely enjoy helping our customers succeed. While we spend our days building reliable software, we also believe that expert advice and personal support make all the difference.
Whether you’re exploring ideas, launching a new project or looking for the right solution, we’d love to hear your story. We don’t just build plugins. We build long-term partnerships.
- Address
- Quantum Add-ons
Annie M.G. Schmidtstraat 216
1822 MD Alkmaar
The Netherlands
- Contact
- Company Details
- KvK
66847680
- VAT
NL002126459B42
- Developed in the Netherlands
- Replies within one business day
We aim to respond to every message quickly
- Support in English and Dutch
We help you in the language you prefer
- Secure and GDPR-compliant
Your data is safe with us
- Support from the developers
Real people. Real help. No bots.
Questions before getting started?
Have a look at the plans, or send your question first. Either way, a real person gets back to you fast.