TeXpad is a LaTeX editor for macOS, iOS, and iPadOS. It[SQ]s designed to make writing LaTeX documents easier and more user-friendly than using a plain text editor and compiling externally. Key features include :

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Real-time preview:

See your compiled PDF document update as you type, making it easy to see the results of your changes immediately.
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Syntax highlighting:

Makes LaTeX code easier to read and understand.
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Auto-completion:

Helps you write LaTeX code faster and more accurately.
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Built-in compiler:

Handles the compilation process for you, so you don[SQ]t need to use a separate terminal or command-line interface.
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Cloud sync:

Allows you to synchronize your documents across multiple devices.
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Templates:

Provides pre-built templates for various document types, saving you time and effort.

Essentially, TeXpad aims to bridge the gap between the power of LaTeX and the convenience of a more user-friendly interface. While it[SQ]s a paid application, its focus on ease of use makes it a popular choice for students, researchers, and anyone who wants to write professional-looking documents using LaTeX without the steep learning curve associated with command-line compilation.