Alternativy k ThinkCalculator pro iPhone s licencí open source

• iPhone
  Všechny platformy Windows Mac Linux Chrome OS Android iPhone Windows Phone Android Wear iPad Android Tablet Kindle Fire Web Self-Hosted Firefox Opera JavaScript BSD Xfce PortableApps.com Chrome GNOME JustBrowsing
• Licence Open Source
  Jakákoli licence Bezplatná licence Licence Open Source Komerční licence