                                          _                             _     _     
                                         (_)                           (_)   | |    
 _ __   ___   __   ____ _ _ __ ___  _ __  _ _ __ ___    ___  __ _ _   _ _  __| |___ 
| '_ \ / _ \  \ \ / / _` | '_ ` _ \| '_ \| | '__/ _ \  / __|/ _` | | | | |/ _` / __|
| | | | (_) |  \ V / (_| | | | | | | |_) | | | |  __/  \__ \ (_| | |_| | | (_| \__ \
|_| |_|\___/    \_/ \__,_|_| |_| |_| .__/|_|_|  \___|  |___/\__, |\__,_|_|\__,_|___/
                                   | |                         | |                  
                                   |_|                         |_|

Overleaf

https://www.overleaf.com/

Open source Freemium

Overleaf is a cloud-based LaTeX editor designed for collaborative technical writing and publishing. The source code is available and can be self-hosted, if desired.

Pros:

Real-time collaboration features
Simple edit/visual modes and automatic LaTeX compilation
Extensive LaTeX template library

Cons:

An internet connection is required to use the app. However, files can be edited offline and synced later
Collaboration features can be expensive