InMobi Advertising
Case Study
momox Unlocks Breakthrough Growth with InMobi DSP
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momox Unlocks Breakthrough Growth with InMobi DSP

Solution

Engaging with customers, Acquiring new users
2x
iOS install growth
5x
more sales conversions on Android
*All data pertains exclusively to campaigns run on InMobi DSP during the period from January 2025 to March 2025.
As our traditional channels seemed to reach a saturation point, we looked to InMobi to diversify our performance marketing approach. Their platform consistently exceeded our expectations, helping us grow iOS users while staying privacy-compliant and re-engaging our Android audience more effectively than ever.The numbers tell the story: 2x iOS installs, 466x Android sales events, and meaningful CPA reductions. What started as a trial partnership has evolved into a trusted relationship—InMobi continues to help us reach quality users and drive real business results.
Seif Hassan
Senior Performance Marketing Manager, momox

About momox

momox, Europe’s leading re-commerce platform, enables users to sell used books, media, and fashion items in just a few taps through its mobile app and website. The app plays a vital role in sourcing inventory directly from individuals, making the supply chain fast, scalable, and user-friendly.

As a true flag-bearer of the circular economy, momox is redefining sustainable consumption by giving pre-owned items a second life-combining convenience, environmental impact, and smart value for consumers.

About momox Tile Image

Objective

Facing growing privacy constraints and rising saturation across SEM and social channels, momox made a pivotal decision to diversify its performance marketing efforts. They turned to in-app programmatic to unlock a new path to growth-seeking a partner with deep expertise in remarketing, SKAN and privacy-first advertising. The objective was twofold: acquire high-intent iOS users and re-engage Android users likely to sell second-hand books on momox App. With Germany and France as their core markets, momox aimed to increase installs, drive more first-time sellers, and boost order volumes.
Objective Tile Image

Solution

InMobi’s in-app programmatic solution proved pivotal in helping momox scale efficiently beyond crowded performance channels. With a SKAN-compliant iOS strategy and precision Android remarketing, the campaigns delivered high-quality book sellers, improved order volumes, and maintained strong cost-efficiency across core European markets.
Solution Tile Image

iOS User Acquisition with Machine Learning-Led Probabilistic Attribution

InMobi leveraged machine learning-driven probabilistic attribution to drive privacy-compliant iOS growth. By analyzing anonymous user signals, contextual data, and campaign metadata, InMobi built probabilistic models that matched users to campaigns without tracking individuals. Further, InMobi DSP’s iOS bidder identified high-intent users and optimized install-to-sale flows, delivering scale and cost efficiency while adhering to Apple's privacy guidelines.

Performance-Led Android Remarketing for Higher Order Frequency

For Android, InMobi leveraged behavioral segmentation and recency-frequency modeling to re-engage users who had stalled post-install or previously sold. Platform-level optimizations across bidding, audience refresh, and event-based attribution helped increase transaction rates and average sell-cart value.

Results

InMobi Advertising helped unlock scalable, privacy-compliant growth across iOS and Android. By reaching high-intent sellers and optimizing for meaningful in-app actions, momox saw a dramatic improvement in user quality and cost efficiency.

On iOS

iOS installs surged while sale events more than doubled, affirming the strength of SKAN-optimized acquisition.

On Android

On Android, precision remarketing not only reactivated dormant users but also drove an exponential lift in conversions—all while significantly reducing cost per action.

2x
iOS install growth
5x
more Android sales conversions
162%
sales lift on iOS
96%
drop in Android CPA
*All data pertains exclusively to campaigns run on InMobi DSP during the period from January 2025 to March 2025.

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