Smart PDF+ Editor vs MDflow

Smart PDF is a PDF editor specially optimized for ink annotations. Use it with an Apple Pencil for the ultimate ease in note taking. Great for professionals Quickly sign and send documents. Review, annotate and share files with your colleagues. Great for students If you spend a lot of time reading and studying documents on your iPad, then Smart PDF is an indispensable tool for getting the most out of your study time. Take notes on documents in class, or while studying at home. Keep all your files organized with the built-in file manager, with color-coded categories. We hope you enjoy Smart PDF! -- The App Makers @ Qrayon

MDflow is an online markdown workspace for writing in a clean, portable format and keeping your knowledge organized. This is the official iOS companion — your whole workspace, ready on iPhone and iPad. Sign in and pick up exactly where you left off on the web. Browse your folders and favorites, search across your entire workspace, and edit any document with autosave so your work is always kept. WHAT YOU CAN DO • Sign in securely with Apple, Google, GitHub, or Microsoft • Browse folders, subfolders, and your favorite documents • Search across your whole workspace and jump straight to a match • Write and edit in clean Markdown with a live rendered preview • Autosave keeps your changes without a manual save • Create new documents and folders on the go • Rename, move, favorite, and delete documents • Unlock password-protected documents, encrypted on your device with Face ID • Adjust text size for comfortable reading and writing • Pull to refresh to sync the latest changes YOUR CONTENT, YOUR FORMAT Everything you write stays as plain Markdown — portable, future-proof, and never locked into a proprietary format. Sensitive documents are encrypted with a password directly on your device, so their contents are never visible to the server. EVEN MORE ON THE WEB MDflow on the web adds side-by-side editing and preview, version history, collections, public and private sharing, import and export, and a full API and MCP server for scripts and AI agents. The iOS app keeps that same workspace in your pocket. Learn more at mdflow.cz Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula