Alternatif untuk SlideMail untuk PureOS (Purism) dengan lesen percuma

• PureOS (Purism)
  Semua platform Windows Mac Linux Chrome OS Android iPhone Apple Watch Android Wear iPad Android Tablet Windows S Web Self-Hosted BSD Haiku PortableApps.com Slack F-Droid Chrome Ruby Gmail Cloudron Amazon Echo (Alexa Voice Service) PureOS (Purism)
• Lesen percuma
  Mana-mana lesen Lesen percuma Lesen Open Source Lesen komersil