Alternativas ao jTalk para F-Droid com licença gratuita

• F-Droid
  Todas as plataformas Windows Mac Linux Chrome OS Android iPhone Windows Phone Blackberry Blackberry 10 Apple Watch Android Wear iPad Android Tablet Kindle Fire Windows S Web Self-Hosted Software as a Service (SaaS) Firefox Safari BSD Windows Mobile Java Mobile Xfce Haiku PortableApps.com Facebook FreeBSD F-Droid Apple Messages S60 Facebook Messenger Chrome HP webOS Telegram PureOS (Purism)
• Licença gratuita
  Qualquer licença Licença gratuita Licença Open Source Licença comercial