What we do

We are specialists in ultra-premium mobile marketing. Our mission is to deliver our clients’ messages to premium audiences on some of the world’s most select and trusted global and local publishers, using the finest rich media, video, and display brand experiences.

Advertisers & Publishers


Reach your qualified audience the most effective and innovative way; select your KPI, formats, and publishers. Sit back, relax, and let us do the rest.

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Monetise your traffic the easy way; direct IOs, no SDK implementation, and units built to your specs using Celtra’s latest technologies.

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  1. Rich Media

    Captivate users with an interactive microsite experience to maximise dwell time and engagements.

  2. Display

    Engage audiences with an animated message to drive quality site visits.

  3. Video

    Drive fullscreen video views reaching the highest completion and consumption rate.

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  Email: mobkoi@rooster.co.uk

  Phone: 020 3440 8930