Shumel Lais

Co-Founder @ Day30

About

I've spent the past 15 years immersed in performance marketing: working across agencies, analytics, DSPs, and MMPs, gaining a deep, end-to-end understanding of the ecosystem. Now, as a second-time founder, I’m combining that experience to help consumer subscription apps navigate the challenges of growth in the post-privacy era. With my new venture, I’m building a tech-enabled consultancy that empowers marketing teams with data-driven strategies, advanced analytics, and performance optimization. Along the way, I share insights, lessons, and practical tips from my journey. Always keen to learn and connect with people in the space and exchange ideas.

Country

United Kingdom

City

London

Industry

Marketing & Advertising

Skill

Web Design, Mobile Advertising, Marketing, Digital Marketing, Branding, Media Planning, Media Buying, Mobile Marketing, Digital Strategy, Brand Development, PPC, E-commerce, Paid Media, Social Media Advertising, Graphic Design, Mobile Applications, Facebook Marketing, SEM, Mobile Devices, Advertising

Experience

Co-Founder

Day30

2025-3 - Present · 1 yr 7 mos

London

Performance Marketing Consultancy for Subscription Apps Powering performance marketing with data science to overcome challenges in the post privacy era for subscription apps. Supporting in-house marketing teams to expand capabilities and channels.

Advisor, Product

Branch

2024-1 - 2024-12 · 1 yr

London, England, United Kingdom

Product GM, Appsumer

InMobi Advertising

2021-11 - 2023-10 · 2 yrs

London, England, United Kingdom

Founder & CEO

Appsumer (Acquired by InMobi)

2015-5 - 2021-10 · 6 yrs 6 mos

London

Acquired by InMobi Appsumer is a SaaS platform, providing performance marketing teams with highly flexible and automated reporting, enabling better campaign optimization's decisions daily. It does this by aggregated and unifying data from every relevant advertising & revenue source, and has over 100 integrations out the box. The platform quickly becomes the corner stone for any growth team to operate and reflected in the fact our customers use our platform every single working day and is the first platform they sign into to start their day. Appsumer raised over $5m in seed funding and was later acquired by mobile ad tech giant InMobi in 2021.