Turing Email is described as 'email client that you can use with your existing email accounts that is packed with innovative features packaged into a beautiful design' and is an app in the Office & Productivity category. There are more than 50 alternatives to Turing Email for a variety of platforms, including Online / Web-based, iPhone, Android, iPad and Windows. The best alternative is ProtonMail, which is both free and Open Source. Other great apps like Turing Email are Gmail (Free), Tutanota (Freemium, Open Source), Outlook.com (Freemium) and Apple Mail (Free).
Horde Groupware is a free, enterprise ready, browser based collaboration suite. Users can manage and share calendars, contacts, tasks and notes with the standards compliant components from the Horde Project.
Teknik was created to provide users with web services that they can trust. Services range from url shorteners to pastebins and encrypted file uploads. Teknik Mail is a premium feature available after a donation of $5 only