Texpad is described as 'LaTeX editor designed for straightforward navigation of projects of any size' and is an app in the News & Books category. There are more than 10 alternatives to Texpad for a variety of platforms, including Mac, Linux, Windows, Online / Web-based and Haiku. The best alternative is LyX, which is both free and Open Source. Other great apps like Texpad are Overleaf (Freemium, Open Source), TeXstudio (Free, Open Source), Texmaker (Free, Open Source) and TeXworks (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.
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.
Getting your research published is tough. You face complex author guidelines, painful citation formatting, messy email collaboration, frustrating word templates, and long drawn submission processes. The good news? Typeset makes it easy.
MacTeX is a redistribution of TeX Live, a typesetting environment. While TeX Live is designed to be cross-platform (running on Unix, Mac OS X, and Windows), MacTeX includes Mac-specific utilities and front-ends.
GNU TeXmacs is a free scientific editing platform designed to create beautiful technical documents. It provides a unified and user friendly framework for editing structured documents with different types of content: text, math, graphics, slides, etc.