Alternativas ao NeutronMail para Android Wear com licença de código aberto

• Android Wear
  Todas as plataformas Windows Mac Linux Android iPhone Android Wear iPad Web Self-Hosted Software as a Service (SaaS) PHP JavaScript Windows Mobile Java Mobile S60 Docker Cloudron OpenPGP Kubernetes S/MIME OpenShift DAVdroid
• Licença Open Source
  Qualquer licença Licença gratuita Licença Open Source Licença comercial