Manage Your Demand, Not Your Wrapper
he unified platform for sophisticated publishers who want our proven technology with more control. It’s the yield tools, data, and expert consultation you need—no coding required.
The Power of Freestar, In Your Hands.
Flex bridges the gap. We give your expert team direct access to the award-winning monetization technology we’ve perfected over a decade. It’s the perfect blend of autonomy and power.
A Smarter Core Engine
Our AI/ML-powered “micro-wrapper” is 500ms faster than traditional wrappers, automatically optimizing the bidder mix, timeouts, and ad formats for every user.
Unprecedented Control
Fine-tune auction mechanics in real-time. Manage your own header bidding setup and run A/B tests with our built-in framework to maximize yield.
Expertise on Demand
Get direct, 24/7 access to 200+ global experts in yield, product, and engineering. We boast a 77+ NPS score—service on par with The Ritz-Carlton, without the support queue.
Is Flex Right for You?

TARGET AUDIENCE
- Publishers with sophisticated in-house ad ops teams.
- Those who are outgrowing a fully managed service.
- Teams that want more autonomy and control over their ad stack.

PAIN POINTS
- Lack of time, resources, or expertise to build a world-class header bidding solution from scratch.
- Needing more transparency and control than a fully managed solution offers.
Ready for a worry-free partnership?

A step-by-step overview of the Flex platform’s capabilities.
- Manage your own header bidding setup.
- Fine-tune auction mechanics in real-time with manual and AI/ML-optimized floors, timeouts, and bidder configurations.
- Utilize the advanced reporting and analytics suite to make data-driven decisions.
- Run experiments with different ad stacks using built-in A/B testing tools.
- Leverage the comprehensive identity testing framework.
- Seamlessly integrate with a wide array of third-party technologies.
- Access Freestar’s expert team through an integrated chat feature.
We’re Built for Publishers, By Publishers.

Proven
Technology
Built on Freestar’s award-winning monetization platform that has been perfected over a decade.

Publisher-First
Approach
Our only loyalty is to your revenue growth. We don’t bid on your inventory, which guarantees zero conflict of interest.

Unparalleled
Flexibility:
our partners, plus ours. Seamlessly add demand from our premium vetted marketplace to fill any gaps and boost revenue.
Join the World’s Most Trusted Publishers
See why industry leaders like Fortune Media and The Associated Press trust Freestar to power their growth