We're Scandinavia's leading growth hacking agency.

App Growth & User Retention

Increase organic installs with our ASO expertise and increase those user's LTV with our proven retention & communication strategies.

Growth Hacking for Apps & SaaS

Focused on Apps and sustainable SaaS; We throw out the playbook of traditional marketing and replace it with only what is testable, trackable, and scalable.

Strategy Consulting | Scale-up Expert

A well thought out growth strategy and a perfect execution is our bread & butter. We have helped startups reach millions of users and scale-up without hiccups!


We work with you, Not for you

App Store Optimization
360 App Growth Services
Retention & CRM
SaaS Growth Hacking
Performance Marketing
Applied Data Science
Product Optimization
Strategic Partnerships
Rapid Experiments

Our Clients.

Partnering up with leading startups


WE're growth experts

We are a Copenhagen based mobile growth consultancy with experience of working with milestone apps like Tattoodo, Panion, Duolingo, HelloMind, Nextdoor, Cryptopia and many more. We help product and marketing teams with the skills and knowledge they need to grow their apps - or we just manage it and do everything for them.


Driven, Committed and Creative


Data is the core of every decision


Copenhagen, Denmark

Who we are

We are a formidable team consisting of Growth Hackers, Data Scientist, On-boarding, Activation & Retention specialists along with on-call UX and Design experts. All aiming towards one goal; a rapid but sustainable growth of each startup we work with.

Our philosophy

We want to change the world, one startup at a time and we aim to work with meaningful startups with a challenging and world changing idea. A passionate founder, an impactful idea and our growth strategies; a dream cocktail. Quality over Quantity!

How we work

Data is at the core of everything we do. We focus on user behaviour, consumer psychology and a user centric human approach in all our strategies. From the moment we start, our singular focus is growth and long term user retention.

What Clients Say.

WE work as a part of your team or become your growth team

GrowthX had clear focus and direction covering a multitude of channels. They took our input seriously and adjusted the plan as per our request. Were very responsive and easy to work with and it felt like they accommodated to our needs (not the other way around). 

And most importantly: They also delivered in terms of results. We have had an excellent growth trajectory and ROI since the beginning of the collaboration.

CEO, hellomind