Marketing apps & demand
We build interactive tools that capture leads while demonstrating your expertise. Calculators, assessments, and custom utilities – designed to qualify visitors and enhance pipeline.
TL;DR
Qontour builds custom marketing apps for B2B companies that want their website actively enhancing their pipeline. ROI calculators, self-assessments, and lead capture utilities that give visitors something genuinely useful while giving your sales team qualified leads to work with. Our own CRO audit tool is the one we keep pushing at you throughout this site – and it's a good example of what this service produces.
- Calculators, assessments, and custom utilities
- Custom lead capture tools built for your specific audience
- Built in Replit and embedded on your Webflow site
- Designed to qualify visitors and enhance pipeline
What to know before kick-off
We start by understanding your audience – their challenges, their questions, and what would genuinely help them. Then we build a tool that serves them first and captures a lead in the process.
How we’ll show up for you
Calculators
ROI calculators, pricing estimators, cost comparison tools, and savings models that give visitors a personalized result in exchange for engagement. The output gives visitors something actionable and gives your sales team a reason to follow up.
Artifacts: Calculator build and landing page
Assessments & quizzes
Self-assessments that help visitors evaluate their readiness, maturity, fit, or qualification. The results are valuable to the visitor and your sales team – qualifying leads based on how they answer.
Artifacts: Assessment build and scoring logic
Custom lead capture utilities
Custom-built tools for use cases unique to your business. Our CRO audit tool is a good example – a site diagnostic we'd run anyway as our first step, now available to visitors so engagements start sooner.
Artifacts: Custom utility build and integration
What we’ll need to begin
We need to understand your audience and what they're trying to solve. If that's already defined, share it. If not, our creative strategy and brand service can help establish that foundation.
- Target audience and their key decision points
- Any existing content or data that could power a tool
- Where the tool will live on your site
- How leads should flow into your CRM or sales process
Where we start
We use our CRO tool on every engagement. Figured it was only fair to let you try it without hiring us first.
The only cost is your email so we can answer any questions you have about your results.

How this process plays out
Scope & strategy
We define what the tool does, who it's for, and how it fits into your site and sales process. Input fields, output logic, lead capture flow, and landing page placement are all mapped before development starts.
Outcome:
- Tool concept and use case definition
- Input/output logic and scoring
- Lead capture and CRM flow planning
How we research in AirOps
Build & test
We develop the tool in Replit – custom code, interactive UI, scoring logic, and result outputs. Everything is tested for accuracy and edge cases across devices before deployment.
Outcome:
- Custom tool development
- UI design and responsive testing
- Logic validation and QA
How we build marketing apps in Replit
Deploy & integrate
We embed the tool on your Webflow site, connect it to your CRM, and verify the full lead capture flow works end to end. The tool goes live on a dedicated landing page or wherever it fits in your site architecture.
Outcome:
- Webflow landing page embed
- CRM integration and lead routing
- Launch verification and monitoring
What to expect
Most marketing apps have a defined build timeline. After launch, we monitor performance and refine based on usage data – adjusting inputs, outputs, or lead capture flow as needed.
What's included
- Tool concept and strategy
- Custom development in Replit
- UI design and responsive build
- Webflow landing page and embed
- CRM integration and lead routing
What's not
- Website development or site-wide changes (see website development and maintenance)
- Content strategy or messaging (see editorial strategy and messaging)
- Conversion optimization or A/B testing on existing pages (see performance optimization and conversion)
Is this service the right choice?
Best for companies that want their website actively generating leads through interaction, not just information. Start here if you have expertise your audience would value in an interactive format. Pairs well with performance optimization and conversion to optimize how the tool converts and content enrichment and AEO/SEO to make sure it gets found.
Our track record
Specifics. Because the work speaks louder than the pitch.
How we help at your stage
Our plans map to where you are – startup, growth, or enterprise. Read what a typical engagement looks like and what's included at each tier.
Queries
Calculators, assessments, and custom utilities. If your audience has a question they're trying to answer, we can probably build a tool that answers it and captures a lead in the process.
A landing page delivers information. A marketing app creates an exchange – the visitor inputs something, gets a personalized result, and provides context your sales team can use.
Yes. We connect the lead capture flow to HubSpot or whatever CRM your team runs. Leads route where they need to go with the context of how the visitor is engaged.
Yes. The tools are built to be maintained and refined. If inputs, scoring, or UI need adjusting – we handle it as part of ongoing support or hand off the documentation so your team can.
It's a self-serve site diagnostic we built for ourselves – it runs a conversion audit on any website and captures an email in the process. We feature it throughout the site as a secondary conversion path. It's a good example of what this service produces.
Need a little more explanation?
That’s what we do.
After submitting = Gala will read this and she usually responds within one business day.
In the meantime – we built a free site diagnostic we're really proud of. We already have your email so you won't have to give us something we don't already have


