new york, May 20, 2026 /PRNewswire/ — Appier, the leading AI Agent as a Service (AaaS) company transforming AdTech and MarTech through autonomous decision-making, announced that it has successfully partnered with Omio, a global travel booking platform, to scale user acquisition from Spain to a broader European presence within a year, consistently meet CPA targets, and maximize ROI through Agentic AI-driven optimization.
Omio pioneers “multimodal travel,” enabling millions of travelers to compare and book train, bus, flight, and ferry tickets in over 45 countries, supported by over 2,000 trusted transportation partners and 28+ languages. Following strong performance in Spain, Omio set out to accelerate expansion in multiple new markets. The challenge was clear. Drive profitable first-time purchase actions and scale efficiently across geographies while maintaining strict CPA and ROAS disciplines.
To support this ambition, Omio partnered with Appier’s EMEA team to deploy Ad Cloud solutions including AIBID for ROAS-driven acquisition and retargeting to increase long-term value (LTV). At the core of this strategy was agentic incrementality, powered by media mix modeling (MMM), to continuously measure the true causal effect of creative and inventory combinations on total sign-ups across markets.
Expand your first purchase across 21 markets
With always-on AI optimization, Omio consistently achieved CPA goals while maintaining strong ROAS performance across expanding geographies. Within a year, the partnership evolved from a single-country initiative to a cross-border growth engine spanning Europe.
Unlike traditional campaign management approaches that rely on manual testing and pause-and-hold-out experiments, Appier’s Agentic AI dynamically adjusted creative formats and inventory placement in real-time. Incremental traffic, such as rewarded and interstitial app placements, is scaled intelligently, while unhealthy traffic is automatically blocked, ensuring capital efficiency and eliminating wasteful spend.
This real-time collaboration allows Omio to move beyond volume-based growth and focus on truly incremental, profitable user acquisition at scale.
A 3-step creative strategy to balance scale and ROI
A key driver of Omio’s success was a structured, three-step creative strategy designed to balance rapid expansion with sustainable ROI.
1. Data accumulation
Display ads were used to increase initial volume and collect foundational data for AI model training, creating a foundation for future optimization.
2. Localization and optimization
We tested multilingual creative across European markets to identify high-performing segments. Analysis revealed that localized Italian and French creatives significantly outperformed their English versions, with the performance gap narrowing in the German and Spanish markets. The winning incentives were then embedded into the interactive format.
3. Scalable engagement
Playable ads and interactive video formats highlighted Omio’s core value proposition, diverse transportation options, and cost-saving benefits such as scratch-to-get discount mechanisms that drive deeper engagement and improved conversion efficiency.
By combining localized creative insights with AI-powered optimization, Omio has ensured each market receives the right message at the right time, supporting both scale and profitability.
Achieve profitable global growth
Through continuous testing, iteration, and AI-driven automation, Omio was able to scale first-time purchase performance across its European footprint within a year, consistently meeting CPA goals and maximizing ROI.
Anastasiia Ivanova, App Performance Marketing Manager at Omio. “Working with Appier has enabled us to efficiently scale up to new markets while maintaining high profitability.” “In just one year, our collaboration has expanded from Spain to 21 countries and consistently achieved our CPA and ROAS goals. Appier provides AI-powered data optimization powered by expert insights and is building a strong long-term partnership to drive growth.”
As Omio continues to expand globally, our collaboration with Appier demonstrates how incremental measurement and real-time optimization powered by Agentic AI can enable high-quality, sustainable international growth in competitive digital markets.
About Omio
Omio is the world’s leading travel app for planning and booking cross-border transportation by comparing and buying train, bus, flight and ferry tickets in one place. Omio operates in over 45 countries with over 2,000 trusted transportation partners, supports over 28 languages and multiple payment options, and provides a seamless travel experience for millions of people around the world.
About Apia
Appier (TSE: 4180) is an AI-native Agentic AI as a Service (AaaS) company that powers business decisions with cutting-edge AdTech and MarTech solutions. Founded in 2012 with the vision of “Making AI Easy by Making Software Intelligent,” Appier strives to help businesses turn AI into ROI with Ad Cloud, Personalization Cloud, and Data Cloud solutions. Appier currently has 17 offices across APAC, the US and EMEA and is listed on the Tokyo Stock Exchange. Please see www.appier.com for more company information and ir.appier.com/en/ for more investor relations information.
contact: [email protected]
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