Latexian is described as 'revolutionary, new LaTeX editor for the Mac. Latexian provides advanced tools for creating and typesetting LaTeX documents. Using Latexian's Live Preview, you can see how your document typesets while you are editing it — the PDF preview updates automatically!'. There are more than 10 alternatives to Latexian for a variety of platforms, including Windows, Linux, Mac, Haiku and Android. The best alternative is LyX, which is both free and Open Source. Other great apps like Latexian are Overleaf (Freemium, Open Source), TeXstudio (Free, Open Source), Texmaker (Free, Open Source) and Kile (Free, Open Source).
LyX is a document processor that encourages an approach to writing based on the structure of your documents (WYSIWYM) and not simply their appearance (WYSIWYG). LyX combines the power and flexibility of TeX/LaTeX with the ease of use of a GUI.
TeXstudio is an integrated environment for writing LaTeX documents. Our goal is to make writing LaTeX as easy and comfortable as possible. Therefore TeXstudio has numerous features like syntax-highlighting, integrated viewer, reference checking and various assistants.
Kile is a user-friendly TeX/LaTeX editor by KDE. Kile gives you the ability to use all the functionality of LaTeX in a graphical interface and has interactive preview mechanisms to readily see the results of editing.
TexMaths is an addon designed to provide LaTeX support into LibreOffice. LaTeX equations can be inserted as images (SVG or PNG formats) and the LaTeX code is saved into the image attribute for further editing.
The TeXworks project is an effort to build a simple TeX front-end program (working environment) that will be available for all today’s major desktop operating systems—in particular, MS Windows (XP and Vista), typical GNU/Linux distros and other X11-based systems, and Mac OS X.
TeXnicCenter is a feature rich and easy-to-use integrated environment for creating LaTeX documents on the Windows platform. Its powerful editor and its tight integration with the LaTeX environment helps you to concentrate on what matters: The content of your document.
Gummi is a lightweight LaTeX editor for the Linux/GTK+ platform, released as free open-source software. It is designed with simplicity in mind and includes features that will make a novice LaTeX user quickly become accustomed to this mark-up language.
MacKichan Software now offers version 5.5 of Scientific WorkPlace, Scientific Word, and Scientific Notebook. You write text and mathematics in your document without having to know a programming language or exit to an equation editor.