Executive Summary
Wister is a leading operator-trusted provider of mobile services and digital content, specialized in Direct Carrier Billing (DCB) user acquisition. Operating across Europe, Africa, and the MENA region, at the intersection of mobile entertainment, payments, and content distribution, Wister manages high-volume digital marketing campaigns designed specifically for smartphone-first audiences.
As creative demand increased across mobile and programmatic display channels, Wister needed a way to scale HTML5 creative production efficiently without adding operational complexity or slowing campaign execution.
By adopting Viewst, Wister streamlined its creative production workflow, significantly accelerating HTML5 ad creation and enabling faster launches, improved efficiency, and greater flexibility to test and iterate creative at scale.
At a glance
Company scale: 40+ collaborators worldwide, 40+ Trusted Telecom Partners, 20+ countries worldwide, 4 Business regions (Europe, Africa, Middle East, Asia)
Top 3
DCB editors in France
16–30
Creative variations per campaign
5–10 hours
Saved per campaign
Meaningful overall impact
About Wister
Wister is a leading operator-trusted provider of mobile services and digital content, specialized in Direct Carrier Billing (DCB) user acquisition. Since 2003, Wister has been delivering innovative products and solutions that enable users to easily discover and enjoy premium digital content on their smartphones.
Operating across Europe, Africa, and the MENA region, Wister distributes high-quality educational, audiovisual, sports, and gaming content to millions of users through secure carrier billing systems.
With a strong focus on performance, compliance, and long-term partnerships, Wister supports content providers and mobile operators in scaling sustainable digital services.
The Challenge
Operating in a fast-moving mobile ecosystem, Wister runs high-volume digital campaigns tailored for smartphone audiences. As campaign activity increased, so did the need to produce a large number of HTML5 display creatives across formats.
Before Viewst:
Campaigns required 16–30 creative variations on average
HTML5 creative production relied on multiple tools and handoffs
Production timelines averaged 1–2 days per campaign
Scaling creative output introduced additional manual effort and workflow friction
For a company operating at Wister’s scale, these inefficiencies limited speed and constrained creative experimentation.
Why HTML5 Matters in Programmatic and DSP Environments
In modern programmatic and DSP-driven advertising, HTML5 has become the standard for rich, interactive display creatives. Unlike static formats, HTML5 ads support animation, interactivity, and responsiveness across devices while remaining compliant with evolving ad platform requirements.
HTML5 is critical in DSP environments because it:
Enables richer user experiences without sacrificing performance
Ensures compatibility across exchanges, browsers, and devices
Supports creative variation and iteration at scale
Meets technical and compliance standards required by major platforms
However, HTML5 creative production is often more complex and time-intensive than static formats, particularly when campaigns require multiple sizes, formats, and variations. At scale, this complexity can slow execution and limit experimentation.
For Wister, simplifying and accelerating HTML5 creative production was essential to maintaining speed and flexibility in a mobile-first, programmatic ecosystem.
The Approach
To support growth while maintaining operational efficiency, Wister adopted Viewst as a centralized creative production platform for HTML5 display advertising.
With Viewst, Wister was able to:
Simplify HTML5 creative production
Reduce reliance on fragmented tools and workflows
Accelerate campaign launches across DSP channels
Support high creative volume without increasing complexity
This streamlined approach aligned with Wister’s mobile-first DNA and need to adapt quickly in a constantly evolving market.
The Results
After implementing Viewst, Wister experienced a clear improvement in creative production efficiency.
Quantitative Impact Highlights
By implementing Viewst as a centralized HTML5 production platform:
Wister transformed HTML5 from a format that was often skipped due to workflow complexity into a scalable, repeatable capability.
HTML5 banner set creation was reduced to approximately 10 minutes per set, delivering 5–10 hours of time savings per campaign while supporting 16–30 creative variations per campaign.
As a result, HTML5 output grew from 0% to 10% of total creative volume, enabling animated deployment across key mobile formats.
HTML5 ad creation in particular became easier and more flexible, enabling the team to respond quickly to new opportunities and market demands.
Business Impact
By removing HTML5 production bottlenecks, Viewst enabled Wister to align marketing execution with the pace of its business.
Creative operations shifted from being a constraint to a scalable capability, supporting Wister’s continued leadership in the mobile entertainment and DCB ecosystem.
Customer Perspective
With Viewst, HTML5 creation became faster and simpler, giving Wister's teams the flexibility to iterate, improve performance, and push creative innovation further
Additional internal feedback highlighted Viewst’s responsiveness and ease of collaboration, reinforcing confidence in the creative production process.
Before and After Snapshot
Before Viewst
Multiple tools and handoffs for HTML5 production
Longer turnaround times as volume increased
Added complexity when scaling creative output
After Viewst
Streamlined HTML5 creative workflow
Faster production and launches
Easier scaling for high-volume mobile campaigns
Who Viewst Is Best For
Based on Wister’s experience, Viewst is especially well suited for:
Mobile-first companies managing high creative volume
Marketing teams producing frequent HTML5 display creatives
Organizations operating at scale across DSPs and markets
Teams seeking speed without added operational complexity
Wister would recommend Viewst to peers facing similar creative scale challenges.
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