Bio: Mobile App Soloprenour helping others to start mobile App business

Bio: a.k.a. Silverback Swift -📱🤓

Bio: Building https://SupaRechnung.de - Easy, compliant invoicing app for freelancers for the German e-invoicing law (E-Rechnungspflicht/XRechnung/ZUGFeRD)

Bio: MacPlus Software https://noteifyapp.com