This presentation will outline the importance in the transnational scaling in enduser involvement in every step, using the design thinking method. This method is e really good way to adapt best practices to other countries. I will present on how we scaled the SAM stressautismmate app from the Netherlands to Denmark and also how we scaled the SAFE app an app for selfharm from Denmark to the Netherlands. I will present on the challenges, to do's and dont's and at the end will provide a guideline on how to do this yourself. I will also put the presentation in the context of the big need for this, with 25% of people suffering from mental helath issues, long waiting list as well as huge problems in the workforce. By scaling and connecting and working together we can bridge the gap and give as many people an equal opportunity and access to mental health. All with the enduser involvement at the core.