Flow vs PDF Highlighter & Markup

Flow – Focus Timer for Deep Work Flow is a simple yet powerful focus timer designed to help you stay productive and enter the flow state effortlessly. Inspired by the Pomodoro Technique but without rigid time constraints, Flow lets you work for as long as you need—whether it's 30 minutes, an hour, or more—so you can stay fully immersed in your tasks. Why Flow? No Time Limits – Unlike traditional Pomodoro timers, Flow doesn’t force breaks every 25 minutes. You decide how long you want to work. Stay Focused – Track your sessions and keep distractions away. Boost Productivity – Work in deep focus mode and improve efficiency. Whether you're studying, working, or creating, Flow helps you structure your time while allowing flexibility to keep you in the zone. Start your Flow today!

Read, highlight and draw on PDFs with three simple tools. Select text to highlight, underline or strike out, add notes, and revise marks with undo and redo. Find passages with document search, bookmarks and the annotation list. Recognize scanned pages on your device, then search and select the recognized text inside the app. Android downloads selected language data, including Korean and English, on first use and reuses it offline. iOS uses the languages supported by Apple Vision on your OS. PDFs and page images are not uploaded for OCR. Your working copies, edits and last page are saved on your device. Adding a new PDF does not automatically remove older work. Save important documents outside the app as well. App deletion, cleared data or storage problems can remove local work. Save or share a new editable annotation PDF, or an image PDF with your marks flattened, while preserving the original. OCR does not add a searchable text layer to exported PDFs. The app does not edit original PDF text or fill forms. Protected PDFs need the correct password; unlocked working copies and exported copies are not password protected.