html+css+js+node+programming vs TeX Go

HTML Designer is a complete web workshop for iPhone and iPad: write the code, watch the page render beside it, then publish straight to your own server. WRITE THE CODE • A real code editor, with syntax colouring for HTML, CSS, JavaScript and PHP • Line numbers, re-indent, find and replace, and find across the whole project • Snippets with trigger keys: type a short key, press Tab, get the block • An HTML validator that lists what is wrong and takes you to the line SEE IT AS YOU TYPE • The preview serves your site from a real local web server, so relative links, images, stylesheets and scripts behave exactly as they will online • PHP pages render through that server too, and Markdown files get a properly rendered preview • Code, Split or Preview — panes side by side or stacked, whichever suits the screen • Inspect: tap an element in the preview and land on its tag in the source • Edit Text: retype wording on the rendered page and the source updates with it PUBLISH TO YOUR SERVER • FTP, FTPS and SFTP built in — no separate client, no export step • Every file shows its sync state: to upload, to download, in sync, or changed on both sides • Publish sends everything you changed in one go • Check Online tells you whether the live site is really answering AN ASSISTANT THAT WRITES FILES • Ask for a change in plain words; the assistant creates and updates real files in your project folder — HTML, CSS, JavaScript and SVG • Bring your own key: Claude (Anthropic), Gemini (Google), or Apple Intelligence running entirely on-device • Keys are kept in the iOS Keychain and nowhere else THE TOOLBOX • DOM outline of the open document • Elements library: HTML tags, form controls, CSS properties, PHP and Markdown blocks, ready to insert • CSS Designer: every selector in the file, every declaration, editable • Snippets panel BUILT FOR iPad • Files, editor and preview side by side • Two projects open in two windows at the same time • Hardware keyboard shortcuts throughout A sample site ships with the app, so there is a real project to open the first time you launch it. Universal purchase: buy once, and the Mac version is included.

TeX Go is a LaTeX editor for iPhone and iPad, built for writing, editing, compiling, and previewing documents wherever you are. Use it for equations, notes, reports, papers, and technical documents. TeX Go keeps the writing experience focused, with a clean editor, quick access to PDF preview, and tools that help you move smoothly from source to output. You can work with files stored on your device or in cloud storage, start from templates, and use editing support such as automatic bracket and command completion. TeX Go also supports local compilation, so many projects can be built directly on your device. Additional TeX packages can be imported when a project needs them, making it easier to keep working even without a remote build environment. Key Features • Clean LaTeX editing environment • Local compilation for supported documents • Fast switching between source and PDF preview • Auto-completion for brackets and commands • Document creation from templates • Editing for local and cloud-based files • Background compilation with completion notifications • Build logs designed to make errors easier to understand Whether you are studying, researching, drafting a paper, or polishing a technical document, TeX Go gives you a practical LaTeX workspace on iOS.