Elephant Folio vs Rectoly for Mendeley

Elephant Folio is a PDF organizer built for people who read a lot of PDFs. Bring a paper in from Safari, Mail, or anywhere on your device, and Elephant Folio files it for you; based on what's inside of it, not just the filename. The folders get made. The tags get applied. You keep reading. Rules that organize for you Set a rule once and every matching document gets tagged automatically. Match on filename, file contents, author, and more. Rules run the moment a file arrives, and you can re-run them on any file in your whole library anytime. No more tagging one file at a time. Smart organizing, on by default When Apple Intelligence is available on one of your devices, Elephant Folio can also read and tag documents on its own. Your documents stay yours Everything stays on your devices. Nothing is uploaded anywhere. Capture from anywhere The Share extension works across Safari, Mail, Files, and anything else that can hand off a PDF. Scan a physical page and it's filed before you put your phone down and your rules apply instantly. Search that actually reaches Not just filenames. Not just folders. Text, tags, and document content, so the thing you're looking for turns up even when you don't remember what you called it. One library across all your devices iCloud keeps Mac, iPad, and iPhone in sync — down to the exact page you left off on. Files live in your Documents folder and open in any app that reads PDFs. Siri Shortcuts let Elephant Folio fit inside whatever system you've already built for yourself. PDF Bookmarks Bookmark any page with a silk ribbon that hangs from the top corner. Slide it, lengthen it, or flick it away. It syncs across your devices through iCloud. Import from anywhere (even from the browser on a Windows): As long as you can access your iCloud folder, you can drag your PDF documents to Elephant Folio and they will be imported next time you open the app. No internet? No problem Elephant Folio is a privacy-centric, offline-first app. Capture, read, tag, and search anywhere. The only network requests this app makes are ones to Apple's servers for iCloud syncing or those to fetch metadata from CrossRef/ArXiv/Pubmed. The elephant never forgets. Now neither do you. By using this app you agree to Apple's standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula

Rectoly is the research-focused PDF reader built for Mendeley users. Your library stays in Mendeley — Rectoly makes reading and annotating on iPhone, iPad and Mac a genuine pleasure. READING MODE Academic papers are usually typeset in two columns, which makes them hard to read on a phone or in a narrow split view. Reading Mode reflows the paper into a single, clean text column — without losing the original PDF. ANNOTATE IN READING MODE Unlike other readers, Rectoly lets you highlight, underline, add sticky notes, and write with Apple Pencil — all while staying in Reading Mode. Your handwriting even scales with the text size. Filter annotations by colour and by kind. ON-DEVICE TRANSLATION Read an English paper in your own language, in Reading Mode and on the PDF page. Translation runs on this device; the paper is never sent to a translation service. Translations are saved to your Mendeley library for your other devices (you can turn this off in Settings). The app's translation model (about 2.5 GB) needs 8 GB of memory or more. Translates English papers into the app's 19 other display languages: Hindi by the system's translator (iOS 26 or later), all the rest by the app's own model. READ ALOUD Hear the text in Reading Mode, in the system voice or the VoiceOver one. SOFT DARK A paper-friendly dark mode that dims the page itself, not just the interface. WORKBENCH (iPad and Mac) Pin Figure 1 beside the text and keep reading — no more scrolling back and forth between a figure and the paragraph that cites it. RESEARCH THEMES Send a passage to a theme, with its source. Keep the theme beside the paper, or open it as a sheet. Export as Markdown or Word (.docx). ACROSS PAPERS The library column has a new Across papers tab: search the annotations, the text and your handwriting in your whole library at once. FIGURES, TABLES AND A COMPARISON TABLE Figures to PNG, tables to CSV — and one table comparing many papers' abstracts, methods and results. YOUR MANUSCRIPT BESIDE THE PAPER Open the document you are writing (.docx, .doc, .odt, .rtf, Markdown, plain text — password-protected ones too) in a column next to the paper. It re-reads the file every time you save. CITATIONS AND NOTES, OUT OF THE APP Copy with page, copy BibTeX or citation keys, and a Notes folder for Obsidian and others — with keyboard shortcuts you can change. MENDELEY SYNC Sign in with your Mendeley account and read your library directly on iPhone, iPad and Mac. Highlights and text notes are saved into the PDF and written back to Mendeley. OPEN FROM WEBDAV Open PDFs kept on a WebDAV server such as Nextcloud or your university's storage — and add them to Mendeley from there. A LIBRARY THAT STAYS OUT OF YOUR WAY - PDFs download only when you open them, saving storage - Downloaded papers work fully offline — flights, commutes, conferences, field work APPLE PENCIL, PRESERVED Handwritten notes are backed up with iCloud, kept with a version history you can restore, and exportable as JSON for long-term preservation. Your research is never locked inside Rectoly. 14-DAY FREE TRIAL → ONE-TIME PURCHASE Try every Pro feature free for 14 days. Unlock with a single one-time payment — no subscription, no recurring charges, no lock-in. Rectoly is an independent app and is not affiliated with, endorsed by, or sponsored by Mendeley Ltd. or Elsevier. A Mendeley account is required to use this app.